98971 + Interview Questions in Primary School in Math

1.	Find the value of (-7)4
Answer» ANSWER: -28 Step-by-step EXPLANATION: PLEASE MARK as BRAINLIEST

1.

Find the value of (-7)4

Answer»

ANSWER:

-28

Step-by-step EXPLANATION:

PLEASE MARK as BRAINLIEST

Discussion

2.	9. Gobinda works as an executive in a factory.He gets 35700 as salary P.M. He saves*8500 every month from his earnings. Findthe ratio of:(i) his earnings to his expenditure.(ii) his earnings to his savings.(iii) his expenditure to his savings.
Answer» Answer: (i) The Ratio of His earnings to his expenditure = 21:16 (ii) The Ratio of his earnings to his savings = 21:5 (ii) The Ratio of his earnings to his savings = 16:5 Step-by-step explanation: Gobinda gets salary 35700 per month. He SAVES EVERY month 8500 (i) Ratio of His earnings to his expenditures: $= \frac{Earnings}{Expenditures}\\= \frac{35700}{35700 - 8500} \\= \frac{35700}{27200}\\= \frac{357}{272} \\= \frac{3.7.17}{16.17} \\=\frac{21}{16}$ = 21:16 (ii) Ratio of his earnings to his savings: $= \frac{35700}{8500} \\=\frac{3.7.17}{5.17}$ = 21:5 (III) Ratio of his expenditures to his savings: $= \frac{27200}{8500} \\=\frac{16.17}{5.17}$ = 16:5

2.

9. Gobinda works as an executive in a factory.He gets 35700 as salary P.M. He saves*8500 every month from his earnings. Findthe ratio of:(i) his earnings to his expenditure.(ii) his earnings to his savings.(iii) his expenditure to his savings.

Answer»

Answer:

(i) The Ratio of His earnings to his expenditure = 21:16

(ii) The Ratio of his earnings to his savings = 21:5

(ii) The Ratio of his earnings to his savings = 16:5

Step-by-step explanation:

Gobinda gets salary 35700 per month.

He SAVES EVERY month 8500

(i) Ratio of His earnings to his expenditures:

$= \frac{Earnings}{Expenditures}\\= \frac{35700}{35700 - 8500} \\= \frac{35700}{27200}\\= \frac{357}{272} \\= \frac{3.7.17}{16.17} \\=\frac{21}{16}$

= 21:16

(ii) Ratio of his earnings to his savings:

$= \frac{35700}{8500} \\=\frac{3.7.17}{5.17}$

= 21:5

(III) Ratio of his expenditures to his savings:

$= \frac{27200}{8500} \\=\frac{16.17}{5.17}$

= 16:5

Discussion

3.	Find the product of 7× (-3)x10
Answer» ANSWER :- → 7 × (-3) × 10 → -21 × 10 → -210 Mark brainliest

3.

Find the product of 7× (-3)x10

Answer»

ANSWER :-

→ 7 × (-3) × 10

→ -21 × 10

→ -210

Mark brainliest

Discussion

4.	If 3TanA=4 then Sin²A+Cos²A+1=_______.
Answer» Solution: SIN2(a)+COS2(a)+1 = [sin2(a)+cos2(a)]+1 = 1 + 1 = 2 Hope this WOULD help.

Discussion

5.	निम्नलिखित स्थितियों के लिए व्यंजक दीजिए -(1)2m में 11 जोङना
Answer» Bhwj ajwjw iwowiwu is bajenwnqn is .OHA WHJ WJ wjwh HHH hhhjjji sbnoeh

Discussion

6.	Ductof twonegative integers
Answer» Answer. We observed that the product of two NEGATIVE integers is a positive integer. if we take THREE negative NUMBERS at a time and MULTIPLY all of them,we get MULTIPLICATION with negative sign. if we take four negative numbers at a time and multiply all of them,we get multiplication with positive sign. Please follow me for more answers

6.

Ductof twonegative integers

Answer»

Answer. We observed that the product of two NEGATIVE integers is a positive integer. if we take THREE negative NUMBERS at a time and MULTIPLY all of them,we get MULTIPLICATION with negative sign. if we take four negative numbers at a time and multiply all of them,we get multiplication with positive sign.

Please follow me for more answers

Discussion

7.	2[5-{4÷3/2(2+ -2/3)}]see the QUESTION from attachment please send me solution
Answer» ANSWER: =2[5-{4÷3/2(4/3)}] =2[5-{8/3(4/3)}] =2[5-32/9] =2[45-32/9] =2[13/9] =26/9 =2.88 This answer MAY be right or maybe WRONG

7.

2[5-{4÷3/2(2+ -2/3)}]see the QUESTION from attachment please send me solution

Answer»

ANSWER:

=2[5-{4÷3/2(4/3)}]

=2[5-{8/3(4/3)}]

=2[5-32/9]

=2[45-32/9]

=2[13/9]

=26/9

=2.88

This answer MAY be right or maybe WRONG

Discussion

8.	(x^4+3x^3+8x^2-12x-7)÷(x^2+3)
Answer» Answer: A circular track as a CIRCUMFERENCE of 3140m with AB as one off its DIAMETER. A scooterist MOVES A to B ALONE the circular path with a uniform SPEED of 10m/s . find.

8.

(x^4+3x^3+8x^2-12x-7)÷(x^2+3)

Answer»

Answer:

A circular track as a CIRCUMFERENCE of 3140m with AB as one off its DIAMETER. A scooterist MOVES A to B ALONE the circular path with a uniform SPEED of 10m/s . find.

Discussion

9.	Factorise:a^4-1/b^4
Answer» Step-by-step EXPLANATION: $\frac{ {a}^{4} - 1}{ {b}^{4} }$ So ${ (\frac{a - 1}{b}) }^{4}$

9.

Factorise:a^4-1/b^4

Answer»

Step-by-step EXPLANATION:

$\frac{ {a}^{4} - 1}{ {b}^{4} }$

So

${ (\frac{a - 1}{b}) }^{4}$

Discussion

10.	When shapes and objects do not resembleeach other when divided into two parts,MASit is calleda) Syametry b) asymmetry c) both a and b
Answer» Step-by-step EXPLANATION: a. syametry divies both

10.

When shapes and objects do not resembleeach other when divided into two parts,MASit is calleda) Syametry b) asymmetry c) both a and b

Answer»

Step-by-step EXPLANATION:

a. syametry divies both

Discussion

11.	मेरी तथा परस्पर परिचित करने वाली रेखाओं को क्या कहते हैं
Answer» सरल रेखा बिन्दुओं का सरलतम बिन्दुपथ होता है। किसी द्वी-विमीय समतल पर दो सरल रेखाएं या तो समानान्तर होंगी अथवा प्रतिछेदी। इसी प्रकार त्रिविम में दो रेखाएं परस्पर समानान्तर, प्रतिछेदी या SKEW (न प्रतिछेदी न ही समानान्तर) हो सकती हैं।

11.

मेरी तथा परस्पर परिचित करने वाली रेखाओं को क्या कहते हैं

Answer»

सरल रेखा बिन्दुओं का सरलतम बिन्दुपथ होता है। किसी द्वी-विमीय समतल पर दो सरल रेखाएं या तो समानान्तर होंगी अथवा प्रतिछेदी। इसी प्रकार त्रिविम में दो रेखाएं परस्पर समानान्तर, प्रतिछेदी या SKEW (न प्रतिछेदी न ही समानान्तर) हो सकती हैं।

Discussion

12.	What is the full form of e=mc²
Answer» Answer: E = mc2. It's the world's most famous equation, but what does it really mean? "Energy equals mass times the speed of light squared." On the most basic LEVEL, the equation says that energy and mass (matter) are interchangeable; they are DIFFERENT FORMS of the same thing.

12.

What is the full form of e=mc²

Answer»

Answer: E = mc2. It's the world's most famous equation, but what does it really mean? "Energy equals mass times the speed of light squared." On the most basic LEVEL, the equation says that energy and mass (matter) are interchangeable; they are DIFFERENT FORMS of the same thing.

Discussion

13.	१९) पक्षी' या शब्दाचे लिंग बदलाO पक्षीणO पशुO प्राणी
Answer» ANSWER: पक्षिगण Step-by-step explanation: HELLO mam ok SEE you LATER

13.

१९) पक्षी' या शब्दाचे लिंग बदलाO पक्षीणO पशुO प्राणी

Answer»

ANSWER:

पक्षिगण

Step-by-step explanation:

HELLO mam ok SEE you LATER

Discussion

14.	Convert the following into rupees g. 82 rupees 9 paise
Answer» We know that 1 rupee = 100 paise. When we CONVERT rupees into paise, we multiply by 100. How to convert paise into rupees? To convert paise into rupees FIRST we NEED to count two digits from the RIGHT and put a point and also write Rs or Re in the beginning. I *think* it is *useful* to *you* *THANK* *YOU*.

14.

Convert the following into rupees g. 82 rupees 9 paise

Answer»

We know that 1 rupee = 100 paise. When we CONVERT rupees into paise, we multiply by 100. How to convert paise into rupees? To convert paise into rupees FIRST we NEED to count two digits from the RIGHT and put a point and also write Rs or Re in the beginning.

I think it is useful to you

THANK YOU.

Discussion

15.	Identify the base and the exponent for(-3/9)
Answer» ANSWER: -1/3 HOPE this is HELPFUL to U

15.

Identify the base and the exponent for(-3/9)

Answer»

ANSWER:

-1/3 HOPE this is HELPFUL to U

Discussion

16.	Skip Counting1.Counting by 5's, write the numbers starting from.(0)543695011(iii) 876(iv) 93714 Math-Magic Workbook-3
Answer» ANSWER: PLEASE I can't answer I'm SORRY

16.

Skip Counting1.Counting by 5's, write the numbers starting from.(0)543695011(iii) 876(iv) 93714 Math-Magic Workbook-3

Answer»

ANSWER:

PLEASE I can't answer I'm SORRY

Discussion

17.	(6x^3-17x^2+6x-7)÷ (2x-3)
Answer» Answer: the QUESTION is WRONG. PLEASE check ONES again

17.

(6x^3-17x^2+6x-7)÷ (2x-3)

Answer»

Answer:

the QUESTION is WRONG. PLEASE check ONES again

Discussion

18.	A cor cavers 44 1/3 km in am hour. How much distance will it cover in 24/7 hours?
Answer» ⇒ Correct Question :- A CAR covers ${\bold44{\bold{\frac{1}{3}}}}$ km in an hour. How much DISTANCE will it COVER in ${\bold{\frac{24}{7}}}}$ HOURS? ⇒ Given :- A car covers, ${\bold44{\bold{\frac{1}{3}}}}$ km in an hour ⇒ To Find :- How much distance will it cover in ${\bold{\frac{24}{7}}}}$ hours? ⇒ Solution :- Distance covered in one hour = ${\bold44{\bold{\frac{1}{3}}}}$ = ${\bold{\frac{44~x~3~+~1}{3}}}}$ = ${\bold{\frac{133}{3}}}}$ ∴ Distance covered in ${\bold{\frac{24}{7}}}}$ hours = ${\bold{\frac{24}{7}}}}~~{\bold{\frac{133}{3}}}}$ = ${\bold{\frac{24~~133}{7~~3}}}}$ = ${\bold{\frac{3192}{21}}}$ = ${\bold{\green{\ <klux>152</klux>}}}$ ${\bold{\green{\ km}}}$ Ans. The car will cover 152 km* in ${\bold{\frac{24}{7}}}}$ hours. ${\huge{\boxed{\bold{\purple{\ Hence~stated}}}}$

18.

A cor cavers 44 1/3 km in am hour. How much distance will it cover in 24/7 hours?

Answer»

⇒ Correct Question :-

A CAR covers ${\bold44{\bold{\frac{1}{3}}}}$ km in an hour. How much DISTANCE will it COVER in ${\bold{\frac{24}{7}}}}$ HOURS?

⇒ Given :-

A car covers,

${\bold44{\bold{\frac{1}{3}}}}$ km in an hour

⇒ To Find :-

How much distance will it cover in ${\bold{\frac{24}{7}}}}$ hours?

⇒ Solution :-

Distance covered in one hour = ${\bold44{\bold{\frac{1}{3}}}}$

= ${\bold{\frac{44~x~3~+~1}{3}}}}$

= ${\bold{\frac{133}{3}}}}$

∴ Distance covered in ${\bold{\frac{24}{7}}}}$ hours = ${\bold{\frac{24}{7}}}}~*~{\bold{\frac{133}{3}}}}$

= ${\bold{\frac{24~*~133}{7~*~3}}}}$

= ${\bold{\frac{3192}{21}}}$

= ${\bold{\green{\ <klux>152</klux>}}}$ ${\bold{\green{\ km}}}$

Ans. The car will cover 152 km in ${\bold{\frac{24}{7}}}}$ hours.

${\huge{\boxed{\bold{\purple{\ Hence~stated}}}}$

Discussion

19.	X + y 1-x-3y, 2x + y - 4
Answer» Answer: 2x-y-3 hope it helps you!

19.

X + y 1-x-3y, 2x + y - 4

Answer»

Answer:

2x-y-3

hope it helps you!

Discussion

20.	Show the terms and factors by tree diagram:( 4a - 25(ii) 5+
Answer» ANSWER: ...........................

20.

Show the terms and factors by tree diagram:( 4a - 25(ii) 5+

Answer»

ANSWER:

...........................

Discussion

21.	Chapter :Probobility
Answer» Answer: 19/60 Step-by-step explanation: 95/300 19/60 0.31667

21.

Chapter :Probobility

Answer»

Answer:

19/60

Step-by-step explanation:

95/300

19/60

0.31667

Discussion

22.	3 ka table for class 1
Answer» ANSWER: this is your answer.......

22.

3 ka table for class 1

Answer»

ANSWER:

this is your answer.......

Discussion

23.	व्हाट वास द रेडियस ऑफ द स्मालेस्ट सरकर
Answer» ANSWER: ZERO Step-by-step EXPLANATION: zero zero zero zero

23.

व्हाट वास द रेडियस ऑफ द स्मालेस्ट सरकर

Answer»

ANSWER:

ZERO

Step-by-step EXPLANATION:

zero zero zero zero

Discussion

24.	Multiply monomial (2a³)(3a⁵)
Answer» Answer: 6a^8 Step-by-step EXPLANATION: PLEASE MARK as BRAINLIEST

24.

Multiply monomial (2a³)(3a⁵)

Answer»

Answer:

6a^8

Step-by-step EXPLANATION:

PLEASE MARK as BRAINLIEST

Discussion

25.	18/4a as a mixed fraction
Answer» Answer: 4.5 ...................

25.

18/4a as a mixed fraction

Answer»

Answer:

4.5 ...................

Discussion

26.	What percentage of 25 hours of 4 days
Answer» ANSWER: 4 DAYS = 96 HOURS. 25/100 × 96 = 21 % is answer

26.

What percentage of 25 hours of 4 days

Answer»

ANSWER:

4 DAYS = 96 HOURS.

25/100 × 96 = 21 % is answer

Discussion

27.	Which option completes the figure matrix?
Answer» ANSWER: d is the answer for your QUESTION

27.

Which option completes the figure matrix?

Answer»

ANSWER:

d is the answer for your QUESTION

Discussion

28.	The HCF of x4 - y4, x2 - y2 and x + y is x+ y.
Answer» ANSWER: HCF is... X + Y² + X ☺️Please Follow Me...

28.

The HCF of x4 - y4, x2 - y2 and x + y is x+ y.

Answer»

ANSWER:

HCF is...

X + Y² + X

☺️Please Follow Me...

Discussion

29.	Find area of square whose sides are: a) 3cmb) 11cmc) 7cmd) 21cm
Answer» ANSWER: 11cm is the answer of the QUESTION

29.

Find area of square whose sides are: a) 3cmb) 11cmc) 7cmd) 21cm

Answer»

ANSWER:

11cm is the answer of the QUESTION

Discussion

30.	What percentage of 1500 gram of 4 kilogram
Answer» Answer: 1500/4000×100 =37.5%

30.

What percentage of 1500 gram of 4 kilogram

Answer»

Answer:

1500/4000×100

=37.5%

Discussion

31.	A shopkeeper make a profit of rupees 5000 in one month and loss of 5200 rupees
Answer» Answer: He LOSS 200 RUPEES in ONE month Step-by-step EXPLANATION:

31.

A shopkeeper make a profit of rupees 5000 in one month and loss of 5200 rupees

Answer»

Answer: He LOSS 200 RUPEES in ONE month

Step-by-step EXPLANATION:

Discussion

32.	What is called perimeter
Answer» $\huge\underbrace{\orange{answer}}$ ❤️ It is the MEASURE of the BOUNDARY of any FIGURE.

32.

What is called perimeter

Answer»

$\huge\underbrace{\orange{answer}}$ ❤️

It is the MEASURE of the BOUNDARY of any FIGURE.

Discussion

33.	Identify large fractionfrom the
Answer» ANSWER: 1st ANS 8/10 2ND ans 10/11 3rdanswer 12/15 4TH ans 15/19 5th ans 20/21 6th ans 21/25 the answer is 21/25

33.

Identify large fractionfrom the

Answer»

ANSWER:

1st ANS 8/10

2ND ans 10/11

3rdanswer 12/15

4TH ans 15/19

5th ans 20/21

6th ans 21/25

the answer is 21/25

Discussion

34.	(x^2+3x+9) ÷ (x-3) solve
Answer» PLEASE MARK MY ANSWER AS BRAINLIEST ANSWER IF MY ANSWER IS CORRECT...

34.

(x^2+3x+9) ÷ (x-3) solve

Answer»

PLEASE MARK MY ANSWER AS BRAINLIEST ANSWER IF MY ANSWER IS CORRECT...

Discussion

35.	Simplify 1/2+ (3/2 -2/5) ÷ 3/10 *3 please zzzzzzz zzzzzz answer
Answer» ANSWER: i THINK this is the answer for UR QUESTION

35.

Simplify 1/2+ (3/2 -2/5) ÷ 3/10 *3 please zzzzzzz zzzzzz answer

Answer»

ANSWER:

i THINK this is the answer for UR QUESTION

Discussion

36.	Out of 1500 apples 3/10 were found rotten and 1/3 were riped . find their respective number
Answer» Answer: TOTAL rotten =450 Total RIPED =350 Total APPLES =1500 Rotten apples =3/10 =3/10(1500) =450* Rest of the apples =1500-450 =1050 Total riped=1/3(1050) Total* riped=350

36.

Out of 1500 apples 3/10 were found rotten and 1/3 were riped . find their respective number

Answer»

Answer:

TOTAL rotten =450

Total RIPED =350

Total APPLES =1500
Rotten apples =3/10
=3/10*(1500)
=450
Rest of the apples =1500-450

=1050

Total riped=1/3*(1050)
Total riped=350

Discussion

37.	What percentage of 20 seconds of 20 minutes
Answer» Step-by-step explanation: FIRST we have to CONVERT 20 min. into sec. I.e 1200 sec =20 PERCENT of 1200=240

37.

What percentage of 20 seconds of 20 minutes

Answer»

Step-by-step explanation:

FIRST we have to CONVERT 20 min. into sec. I.e 1200 sec

=20 PERCENT of 1200=240

Discussion

38.	Arcius vs U-Hoopa to kon jitaga
Answer» Answer: Arceus Explanation: SEE, Arceus was the first Pokémon to be born it CREATED other Pokemon's and the UNIVERSE. Arceus is literally LIKE the god in Pokémon universe. now hoopa might be a legendary powerful Pokémon but Arceus is way too powerful.hoopa DEFEATING Arceus is like magikarp defeating Mewtwo.

38.

Arcius vs U-Hoopa to kon jitaga

Answer»

Answer:

Arceus

Explanation:

SEE, Arceus was the first Pokémon to be born it CREATED other Pokemon's and the UNIVERSE. Arceus is literally LIKE the god in Pokémon universe. now hoopa might be a legendary powerful Pokémon but Arceus is way too powerful.hoopa DEFEATING Arceus is like magikarp defeating Mewtwo.

Discussion

39.	The reciprocal of 2/5×10/8 = ???
Answer» Step-by-step EXPLANATION: So, 2/5 ×10/8 = 1/2 =2 RECIPROCAL of 1/2= 2/1 OR2

39.

The reciprocal of 2/5×10/8 = ???

Answer»

Step-by-step EXPLANATION:

So,

2/5 ×10/8 = 1/2 =2

RECIPROCAL of 1/2= 2/1 OR2

Discussion

40.	What percentage of 30cm of 1.5m
Answer» Answer: 1 m = 100 CM 1.5 m = 150 cm 30% of 150 is 45. 45 cm is your answer. Step-by-step explanation: HOPE it helps you..

40.

What percentage of 30cm of 1.5m

Answer»

Answer:

1 m = 100 CM

1.5 m = 150 cm

30% of 150 is 45.

45 cm is your answer.

Step-by-step explanation:

HOPE it helps you..

Discussion

41.	20 by 3 ki mixed fraction for class 6
Answer» 6 WHOLE 2/3 is the ANSWER

41.

20 by 3 ki mixed fraction for class 6

Answer»

6 WHOLE 2/3 is the ANSWER

Discussion

42.	084TVS Scolue the following Leord problem:There_0%e7510 students in school. Each studentCartabuted Rs: 38 to the Prime Minister's sellefund. How much money did the studente contributeto the fund?
Answer» ANSWER: don't KNOW don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know

42.

084TVS Scolue the following Leord problem:There_0%e7510 students in school. Each studentCartabuted Rs: 38 to the Prime Minister's sellefund. How much money did the studente contributeto the fund?

Answer»

ANSWER:

don't KNOW don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know don't know

Discussion

43.	If 10 gram of Gold is of 50,000 so what is the price of 14 kg of Gold ?It's urgent please answer fast please please
Answer» Answer: 1000000000000000000000

43.

If 10 gram of Gold is of 50,000 so what is the price of 14 kg of Gold ?It's urgent please answer fast please please

Answer»

Answer:

1000000000000000000000

Discussion

44.	Multiply 4multiply 2y2z by 7multiply2yz2
Answer» Answer: 4×2y2z = 16yz 7 X 2y2z = 28yz 16yz x 28yz = 448y²z²

44.

Multiply 4multiply 2y2z by 7multiply2yz2

Answer»

Answer:

4×2y2z = 16yz

7 X 2y2z = 28yz

16yz x 28yz = 448y²z²

Discussion

45.	FIND THE PRODUCT OF: -8x²y and 3x³y³
Answer» ANSWER: THE PRODUCT OF: -8x²y and 3x³y³

45.

FIND THE PRODUCT OF: -8x²y and 3x³y³

Answer»

ANSWER:

THE PRODUCT OF: -8x²y and 3x³y³

Discussion

46.	Complete the equation by balancing method: 2(3x+1) =20 then (3x+1) =?
Answer» Answer: 10 Step-by-step EXPLANATION: I HOPE it's helpful follow me PLEASE !!!

46.

Complete the equation by balancing method: 2(3x+1) =20 then (3x+1) =?

Answer»

Answer:

10

Step-by-step EXPLANATION:

I HOPE it's helpful

follow me PLEASE !!!

Discussion

47.	Find square root of 6400and please follow me
Answer» ANSWER: 80 Step-by-step EXPLANATION: it is CORRECT answer

47.

Find square root of 6400and please follow me

Answer»

ANSWER:

80

Step-by-step EXPLANATION:

it is CORRECT answer

Discussion

48.	What is 2×10? please tell fast
Answer» Step-by-step explanation: 20 OBVIOUSLY don't U KNOW that

48.

What is 2×10? please tell fast

Answer»

Step-by-step explanation:

20 OBVIOUSLY don't U KNOW that

Discussion

49.	6228919 write in words
Answer» SIXTY TWO LAKH TWENTY EIGHT THOUSAND NINE HUNDRED NINETEEN

Discussion

50.	a machine gun bullet has a mass of 200 gram leaves the barrel at a speed of 150 metre per second one find the kinetic energy of a bullet
Answer» Step-by-step EXPLANATION: MASS of bullet, m=100g= 1000 100 kg= 10 1 kg VELOCITY of bullet, v=100ms −1 Mass of gun, M=20kg Let recoil velocity of gun =V Before firing, the system (gun+bullet) is at rest, therefore, initial momentum of the system =0 FINAL momentum of the system = momentum of bullet + momentum of gun =mv+MV= 10 1 ×100+20V=10+20V Applying law of conservation of momentum, Final momentum = Initial momentum i.e., 10+20V=0 20V=−10 or V=− 20 10 =−0.5ms −1 . Negative sign shows that the direction of recoil velocity of the gun is opposite to the direction of the velocity of the bullet.

50.

a machine gun bullet has a mass of 200 gram leaves the barrel at a speed of 150 metre per second one find the kinetic energy of a bullet

Answer»

Step-by-step EXPLANATION:

MASS of bullet, m=100g=

1000

100

kg=

10

1

kg

VELOCITY of bullet, v=100ms

−1

Mass of gun, M=20kg

Let recoil velocity of gun =V

Before firing, the system (gun+bullet) is at rest, therefore, initial momentum of the system =0

FINAL momentum of the system = momentum of bullet + momentum of gun

=mv+MV=

10

1

×100+20V=10+20V

Applying law of conservation of momentum, Final momentum = Initial momentum

i.e., 10+20V=0

20V=−10

or V=−

20

10

=−0.5ms

−1

.

Negative sign shows that the direction of recoil velocity of the gun is opposite to the direction of the velocity of the bullet.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Find the value of (-7)4​

9. Gobinda works as an executive in a factory.He gets 35700 as salary P.M. He saves*8500 every month from his earnings. Findthe ratio of:(i) his earnings to his expenditure.(ii) his earnings to his savings.(iii) his expenditure to his savings.​

Find the product of 7× (-3)x10​

If 3TanA=4 then Sin²A+Cos²A+1=_______.​

निम्नलिखित स्थितियों के लिए व्यंजक दीजिए -(1)2m में 11 जोङना​

Ductof twonegative integers​

2[5-{4÷3/2(2+ -2/3)}]see the QUESTION from attachment please send me solution ​

(x^4+3x^3+8x^2-12x-7)÷(x^2+3)​

Factorise:a^4-1/b^4​

When shapes and objects do not resembleeach other when divided into two parts,MASit is calleda) Syametry b) asymmetry c) both a and b​

मेरी तथा परस्पर परिचित करने वाली रेखाओं को क्या कहते हैं​

What is the full form of e=mc²​

१९) पक्षी' या शब्दाचे लिंग बदलाO पक्षीणO पशुO प्राणी

Convert the following into rupees g. 82 rupees 9 paise​

Identify the base and the exponent for(-3/9)​

Skip Counting1.Counting by 5's, write the numbers starting from.(0)543695011(iii) 876(iv) 93714 Math-Magic Workbook-3​

(6x^3-17x^2+6x-7)÷ (2x-3)​

A cor cavers 44 1/3 km in am hour. How much distance will it cover in 24/7 hours?​

⇒ Correct Question :-

⇒ Given :-

⇒ To Find :-

⇒ Solution :-

X + y 1-x-3y, 2x + y - 4​

Show the terms and factors by tree diagram:( 4a - 25(ii) 5+​

Chapter :Probobility​

3 ka table for class 1​

व्हाट वास द रेडियस ऑफ द स्मालेस्ट सरकर​

Multiply monomial (2a³)(3a⁵)​

18/4a as a mixed fraction​

What percentage of 25 hours of 4 days​

Which option completes the figure matrix? ​

The HCF of x4 - y4, x2 - y2 and x + y is x+ y.​

Find area of square whose sides are: a) 3cmb) 11cmc) 7cmd) 21cm​

What percentage of 1500 gram of 4 kilogram​

A shopkeeper make a profit of rupees 5000 in one month and loss of 5200 rupees​

What is called perimeter​

Identify large fractionfrom the

(x^2+3x+9) ÷ (x-3) solve​

PLEASE MARK MY ANSWER AS BRAINLIEST ANSWER IF MY ANSWER IS CORRECT...

Simplify 1/2+ (3/2 -2/5) ÷ 3/10 *3 please zzzzzzz zzzzzz answer ​

Out of 1500 apples 3/10 were found rotten and 1/3 were riped . find their respective number

What percentage of 20 seconds of 20 minutes​

Arcius vs U-Hoopa to kon jitaga ​

The reciprocal of 2/5×10/8 = ???​

What percentage of 30cm of 1.5m​

20 by 3 ki mixed fraction for class 6 ​

084TVS Scolue the following Leord problem:There_0%e7510 students in school. Each studentCartabuted Rs: 38 to the Prime Minister's sellefund. How much money did the studente contributeto the fund?​

If 10 gram of Gold is of 50,000 so what is the price of 14 kg of Gold ?It's urgent please answer fast please please​

Multiply 4multiply 2y2z by 7multiply2yz2​

FIND THE PRODUCT OF: -8x²y and 3x³y³​

Complete the equation by balancing method: 2(3x+1) =20 then (3x+1) =?​

Find square root of 6400and please follow me​

What is 2×10? please tell fast​

6228919 write in words​

a machine gun bullet has a mass of 200 gram leaves the barrel at a speed of 150 metre per second one find the kinetic energy of a bullet​

Find the value of (-7)4

9. Gobinda works as an executive in a factory.He gets 35700 as salary P.M. He saves*8500 every month from his earnings. Findthe ratio of:(i) his earnings to his expenditure.(ii) his earnings to his savings.(iii) his expenditure to his savings.

Find the product of 7× (-3)x10

If 3TanA=4 then Sin²A+Cos²A+1=_______.

निम्नलिखित स्थितियों के लिए व्यंजक दीजिए -(1)2m में 11 जोङना

Ductof twonegative integers

2[5-{4÷3/2(2+ -2/3)}]see the QUESTION from attachment please send me solution

(x^4+3x^3+8x^2-12x-7)÷(x^2+3)

Factorise:a^4-1/b^4

When shapes and objects do not resembleeach other when divided into two parts,MASit is calleda) Syametry b) asymmetry c) both a and b

मेरी तथा परस्पर परिचित करने वाली रेखाओं को क्या कहते हैं

What is the full form of e=mc²

Convert the following into rupees g. 82 rupees 9 paise

Identify the base and the exponent for(-3/9)

Skip Counting1.Counting by 5's, write the numbers starting from.(0)543695011(iii) 876(iv) 93714 Math-Magic Workbook-3

(6x^3-17x^2+6x-7)÷ (2x-3)

A cor cavers 44 1/3 km in am hour. How much distance will it cover in 24/7 hours?

X + y 1-x-3y, 2x + y - 4

Show the terms and factors by tree diagram:( 4a - 25(ii) 5+

Chapter :Probobility

3 ka table for class 1

व्हाट वास द रेडियस ऑफ द स्मालेस्ट सरकर

Multiply monomial (2a³)(3a⁵)

18/4a as a mixed fraction

What percentage of 25 hours of 4 days

Which option completes the figure matrix?

The HCF of x4 - y4, x2 - y2 and x + y is x+ y.

Find area of square whose sides are: a) 3cmb) 11cmc) 7cmd) 21cm

What percentage of 1500 gram of 4 kilogram

A shopkeeper make a profit of rupees 5000 in one month and loss of 5200 rupees

What is called perimeter

(x^2+3x+9) ÷ (x-3) solve

Simplify 1/2+ (3/2 -2/5) ÷ 3/10 *3 please zzzzzzz zzzzzz answer

What percentage of 20 seconds of 20 minutes

Arcius vs U-Hoopa to kon jitaga

The reciprocal of 2/5×10/8 = ???

What percentage of 30cm of 1.5m

20 by 3 ki mixed fraction for class 6

084TVS Scolue the following Leord problem:There_0%e7510 students in school. Each studentCartabuted Rs: 38 to the Prime Minister's sellefund. How much money did the studente contributeto the fund?

If 10 gram of Gold is of 50,000 so what is the price of 14 kg of Gold ?It's urgent please answer fast please please

Multiply 4multiply 2y2z by 7multiply2yz2

FIND THE PRODUCT OF: -8x²y and 3x³y³

Complete the equation by balancing method: 2(3x+1) =20 then (3x+1) =?

Find square root of 6400and please follow me

What is 2×10? please tell fast

6228919 write in words

a machine gun bullet has a mass of 200 gram leaves the barrel at a speed of 150 metre per second one find the kinetic energy of a bullet