Explore topic-wise InterviewSolutions in .

thanks

wt no of students total wt40. 3. 120 kg42. 5. 21045. 6. 27050. 1. 50total students=15total wt = 650 kgavg wt = 650/15;kg

(i) In ascending order36, 37, 38, 41, 42, 44, 45, 46, 48, 49, 50, 52

(ii) Range of weights = (52 - 36) = 16

(iii) Mean weight = (36+37+38+41+42+44+45+46+48+49+50+52) /12= 528/12 = 44

(iv) 6 boys have weight more than mean weight

Let the marks of the 1st guy = xLet the marks of 2nd guy = x + 9Sum of their marks = x + (x+9) = 2x+9According To the Question -(x+9) = 56% of 2x+9=> (x+9) = 56/100 * 2x+9=> 25(x+9) = 14(2x+9)=> 25x + 225 = 28x + 126=> 3x = 99=> x = 33

Cost of 7 Kg Onion is ₹140Cost of 1 Kg Onion is ₹140/7= ₹20Cost of 12 Kg Onion is ₹ 20 × 12 kg = ₹240

Cost of 7 Kg Onion is ₹140Cost of 1 Kg Onion is ₹140/7= ₹20Cost of 12 Kg Onion is ₹ 20 × 12 kg = ₹240

if 7 kg onion costs 140 rupees then 1 kg of onion will cost 140÷7=20 rupees ...

so 12 kg of onion will costs =12×20=240 rupees.

hope you got it...

best i no the answer but I am only ,testing this app

thos app is very good for students....

let Amount of coffee he buy = x kgand that of tea = y kgx + y = 24 (given) x = 24 - y ... (i) cost of x kg coffee =Rs37.5xcost of y kg tea = Rs 35y37.5x + 35y = 870 (given) using (i) equation 37.5(24-y) + 35y = 870900 - 37.5y + 35y = 870-2.5y = -30y = 30/2.5y = 12 kgand x = 24 - 12 =12kgcoffee= 12kg and tea = 12 kg answer

send picture clarity

We know sec ( 90 - A ) = cosec (A)

sec(4A) = cosec ( A - 10)

sec(4A) = sec ( 90 - ( A - 10))

Comparing both sides

4A = 90 - A + 10

5A = 100

A = 100/5

A = 20

Option (a) is correct

Let us consider an object which is projected vertically upwards with initial velocity u which reaches a maximum height h.Acceleration due to gravity=-gEquation of Motion for a body projected thrown upwards :V=u-gt----------(1)h=ut-1/2gt² -----------(2)v²-u²=-2gh --------(3)

Equations of motion for freely falling body :for free fall :Initial velocity=u=0g=gV=gt----------(4)h=1/2gt²-------(5)v²=2gh------(6)Time of Ascent is the time taken by body thrown up to reach maximum height hAt maximum height , V=0

Equation (1) turns to u=gt1t1=u/g ----------(7)Maximm height h=u²/2g ----------(8)

Time of descent : After reaching maximum height , the body begins to travel downward like free fallso equation (5) h=1/2gt₂²t₂²=2h/gt₂=√2h/gbut from equation (9)t₂=√2xu²/2g²t₂=u/g -----------------equation (10)∴t₁=t₂The time ascent is equal to time of descent in case of bodies moving under gravity

Sum of two nmbr=7/12+11/18L.c.m of 12,18=36So,(7*3/36)+(11*3/36)21/36+33/36=54/36Sum of 3 nmbr=73/36So,diffrence=3rd nmbr=73/36-54/36=19/36

5/6 is the right answer

Thnku ji

991 is the answer because

The numbers range from 100 to 999 are 3 digit numbers. There is no restriction. Any digit can appear any number of times.

So ways of selecting 3 digits out of 7 digits : 9*9*9= 729

5.96×1024kg.

F=Gm1m2/r2=maGm/r2=gm=gr2/Gm=(9.8m/s2)(6.37×106m)2/(6.673×10−11Nm2/kg2)m=5.96×1024kg

Let the centre be (α, β)∵It cut the circle x^2+ y^2= p^2orthogonally2(-α) × 0 + 2(-β) × 0 = c1 – p2c1 = p2Let equation of circle is x^2+ y^2- 2αx - 2βy + p2= 0It pass through (a, b) ⇒ a2+ b2- 2αa - 2βb + p2= 0Locus ∴ 2ax + 2by – (a^2+ b^2+ p^2) = 0.

Option=A

Following are the health benefits of basketball. Promotes Cardiovascular Health. Burns Calories. Builds Bone Strength. Boosts The Immune System. Provides Strength Training. Boosts Mental Development. Develops Better Coordination And Motor Skills. Develops Self-Discipline And Concentration

5km/hr train moving on ground , boy moving due north and another boy moving south ,boy move your opposite direction to increased train moving speed

i)0.00000508ii) 79000

for first question...00000508

for second question..79000

thank you

Worm gear (or worm drive) is a specific gear composition in which a screw (worm) meshes with a gear/wheel similar to a spur gear. The set-up allows the user to determine rotational speed and also allows for higher torque to be transmitted. This mechanism can be found in devices both at home and in heavy machinery; the simplest form evident in the tuning mechanism of an acoustic guitar.

Answer :2)39Explanation Let kanta mark be xcharu mark =x+5pankaj mark=x-10sum =112Thus x+x+5+x-10=112x=117/3x=39thus kanta mark is 39

U=2000

Cricket(c)=1000

Basketball(b)=600

Football(f)=550

C nB nF'=120

BnFnC'=80

CnFnB'=150

CnBnF=45

Secondly,put variables in the set of cricket,football and basketball only respectively

A for cricket only;B for basketball only and C for cricket only

a

A+105+75+45=1000

A+225=1000 (use the principle of change of subject then arrive at)

A=775

B+75+45+35=600

B=445

C+105+45+35=550

C=365

Now to find the students who play none of the games, add everything in the set and add another variable(x) to replace the number of students who play none of the games

It becomes A+B+C+x+45+35+75=2000

775+445+365+260+x=2000

1845+x=2000(make x the subject)

x=1845

therefore 1846 students played none of the games

(ii)exactly one=A+B+C

775+445+365=1585

therefore 1585 played exactly one games

(iii)exactly two=105+75+35

=215

therefore 215 played exactly two games

Total n = 50and n (football ) = 32and n (cricket) = 35

so, n( football and cricket) = 35+32-50 = 67-50 = 17

so, n ( football only) = n(football) - n( football and cricket) = 32-17 = 15.

By properties of Venn diagram,n(AUB) = n(A)+n(B)-n(A intersection B)50=32+35+xx=17So, 17 students play both the games.

No. of student who play football=40%no. of student who play cricket=50%18%student neither play cricket nor play footballthen , 40+50+18=108%108-100=8%

If 5 is added to each numberthen avg also will be increased by 5and now new avg will be 13+5= 18thanks

casas tipicas 3 * 4 equals 12 and 12 is the answer to the problem in which one equals three three times for would be 12

Their marks ratio 13:11

54 is right answer bro

44 is your answer brother

44 is the answer of the following

44is our answers to questions

A got 369/500 * 100 = 72%This was 90% of B. So B = 72 * 100 / 90 = 80%.

This was 125% of C. So C = 80 * 100 / 125 = 64%.

This was 80% of D. So D = 64 * 100 / 80 = 80%.So D got 80% marks.

she answered 6 questions correctly as 5*6 = 30 marks and 2 questions incorrect so negative marks = -4 total marks got = 30-4= 26

Prime factors means factors which are prime numbers

60 = 2*2*3*5

Prime factors of 60 are 2, 3, 5

Hit like button if you like my solution !

Thnks

click photo properly