Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

69901.

in the Tengtn and breaath of the rectangle so formedAka is 27 years older than her daughter Rekha. Aftpresent agesAer 8 years she will be twice as old as Rekha. Find their

Answer»
69902.

2. AB and CD are respectively arcsof two concentric circles of radii21 cm and 7 cm with centre O. If<AOB = 45°, then find the areaof a shaded region.N/ .4-7cm-HD

Answer»
69903.

10. Mrs.Joseph is 27 years older than her daughter Bindu.After 8years she will be twice as old as Bindu. Find their present age.11. After 16 years, Leena will be three times as old as she is novwFind her present age.

Answer»
69904.

1)Lc Wie Turl UUD ULAC uve2) Explain methods of acquisition of citizenship?3) Write themo

Answer»

An acquisition is where one company takes control of another by purchasing it's assets of the majority of it's sharesThere are five main types of acquisitions : value creating _value creating is where a company acquiresanother company , improves it'sperformance and then spelled it again for a prorated

69905.

\left(\frac{1}{\log _{b} a}\right)\left(\frac{1}{\log _{a} b}\right)=

Answer»
69906.

A=\left[ \begin{array}{rr}{1} & {3} \\ {2} & {-4}\end{array}\right] \& B=\left[ \begin{array}{cc}{4} & {-1} \\ {2} & {0}\end{array}\right], \text { find } 2 A+2 B

Answer»

this is 5 marks in exam give me correct answer

thanks

69907.

Q2. The value of 'K' for which the followingequation has equal roots.(k-12)x2 + 2 (k - 12)x+ 2 = 0.те

Answer»
69908.

Find the values of k for which the followingequation has equal roots(k-12) x2 + 2 (k - 12) x + 2 = 0.

Answer»

(k - 12)x² + 2(k - 12)x + 2 = 0a = k - 12b = 2(k - 12) = 2k - 24c = 2

To have equal roots, the discriminant must equal to 0D = 0b² - 4ac = 0(2k - 24)² - 4 . (k - 12) . 2 = 04k² - 96k + 576 - 8k + 96 = 04k² - 104k + 672 = 0 (divide by 4 for both sides of equation)k² - 26k + 168 = 0k² - 12k - 14k + 168 = 0k(k - 12) - 14(k - 12) = 0(k - 12)(k - 14) = 0k = 12 (not acceptable) or k = 14 (acceptable)

not acceptable because if we put K for 12 the it will be 0x^2 not possible so we take 14

k= 14 is the correct answer of the given question

69909.

Q2.The value of 'K' for which the followingequation has equal roots.(k-12)x2 + 2 (k - 12)x + 2 = 0.

Answer»
69910.

or what value of k, does the given equationhave real and equal roots?(k + 1) x2 -2 (k 1) x 1 0.

Answer»

For real and equal roots,Determinant = 0b^2 - 4ac = 04(k-1)^2 -4(k+1)=0k^2 + 1 - 2k - k -1=0k^2 - 3k=0k(k-3)=0k=0 and k=3

69911.

14. Mrs Goel is 27 years older thanRekha. Find their present ages.her daughter Rekha. After 8 years she will be twice as old as

Answer»
69912.

Mrs Goel is 27 years older than her daughter Rekha. After 8 years she will be twice as old asRekha. Find their present ages.14.

Answer»
69913.

DecimalsWrite the following decimals as fractic4.8

Answer»

48/10 is the answer of the following

48/10 is the correct answer of the given question

48/10 is correct answerplease like

48/10 is the right answer

48/10 is the correct answer

69914.

LAS-CLogihten in 4hd sin motional number between 3 and 4

Answer»

The numbers can be 3.1,3.2,3.3,3.4,3.5,3.6

69915.

FAGEDATE

Answer»

2/√7-√6*(√7+√6)/√7+√6)=2(√7+√6)/(√7)^2-(√6)^2=2√7+2√6/7-6=2√7+2√6

69916.

If one root of the equation ax-+ bx + c(acn)1(n + 1 (anc)n +1)+ b 00 ıs equal to npower of the ther root, show that

Answer»

unable to understand

69917.

in the sides of a right angle triangle poraspo tem, DR = 25ch and <0-90° respectuelther fend, tanp-tand

Answer»
69918.

Cheek whether the equatither the equation 9x2-30xt25-0 has equal rootsk Checok

Answer»

For equation roots D. = 0

so, Here D =. (-30)² - 4*(9)*(25) = 900-36*25 = 0

so, Roots are equal

69919.

,ienlllndtheValueoftanORLn (A + B) = 1 and tan (A-B) =|,0°<A+B<90°, A > B, therV3values of A and HB5

Answer»

Given,tan (A + B) = 1tan (A + B) = tan 45°A + B = 45........(1)

tan (A - B) = 1/sqrt(3)tan (A - B) = tan 30°A - B = 30........(2)

Add eq(1) and eq(2)2A = 75A = 75/2 = 37.5°

Put value of A in eq(1), we get 37.5 + B = 45B = 45 - 37.5B = 7.5°

69920.

Rakhi's a er brother's age is 32 years, what isRakhi's age?ther is 8 years older than four-fifther age. Ifbrother's0

Answer»
69921.

Express the following urational numberlas decimals!Ls 42100

Answer»

42/100=0.42 eo the asnwer is 0.42

0.420000000000000999999998

69922.

What must be subtracted from1 to detlas 5(b) -5

Answer»

-1-x=-6x=6-1x=5hope it helps

5 is the correct answer of the given question.

- 1 - = - 6x=6 - 1x= 5 hope it helps

69923.

\frac { x - 5 } { 10 } + \frac { x + 5 } { 5 } = 5

Answer»

rong answer

yesthis is right

Hey MateHere Is Answer To Your QuestionHope That Might Help You

rong answer .....???? answer are 15

Brother you can checkmy answer is 15

69924.

5^-5 x 5^-8 x 5

Answer»
69925.

है के दि कक कक दि8. Simplify :Cos? 8 ( Tan?0 + Cosec® 0 - Cot* 0) Sin® 0e

Answer»

Let theta = x

cos^2 x(tan^2 x + cosec^2 x - cot^2 x) - sin^2 x

Usingcosec^2 x - cot^2 x = 1

= cos^2 x(tan^2 x + 1) - sin^2 x

= cos^2 x(sin^2 x/cos^2 x + 1) - sin^2 x

= cos^2 x[(sin^2 x + cos^2 x)/cos^2 x] - sin^2 x

= sin^2 x + cos^2 x - sin^2 x

= cos^2 x

69926.

2.3.Simplify: (1) a (a - USimplify the following expressions and evaluate ther0 (3.2x*y) x (2.1x y) when x = 1 and y = 0.5

Answer»

0.21 is correct answer

69927.

Apply laws of exponents & Simplify\left(3^{0} \times 2^{5}\right)+5^{0}

Answer»
69928.

Simplify the following1) (a, b+ 0)

Answer»

a^15 b^4/a^6 b ^2 = a^15-6 b^4-2= a^8b^2= a^4b

69929.

3. Simplify.0) (2- 5) (x 5) + 25

Answer»
69930.

A circular coil of 300 turns and diameter 14 cm (carries a current of 15A. What is the magnitudeof magnetic moment associated with the coil?Ans : 69.27 Am)

Answer»
69931.

EXAMPLE 1 Find the circumference and the area of a circle of (i) radius 21 cm and(ii) diameter 14 cm

Answer»
69932.

EXERCISE 10B. In the adjoining figure, ABCD is a parallelogram inA =72. Calculate <B, <C and <D.which72°

Answer»
69933.

प्रश्नमाला 15A/21A का 1 दिन का कार्य ==13 का 1 दिन का कार्य = का 160%=(110)

Answer»

A can do the job in 12 days but B is 60% more efficient , that means that B can do it in less days.....how much ? let's find out...

Proper logic ::

Since B's efficiency is relative to A , consider B's no. of days to be "x"

1 day work of B = 1/x , 1 day work of A = 1/12

So, according to the question, The efficiency of B is =>

( ( (1/x)-(1/12) )/ (1/12) ) * 100 = 60 (Since B is 60% more efficient than A)

This would become => ( (12-x)/x)=0.6 => 1.6x = 12 => x= 7.5 days

7.5 days is the correct answer

The answer should be 7.5days

All the answers which are verified by scholr experts are absolutely correct.

this is my answer 7.5 days

efficiency of B is 7.5 days is the best answer

7.5 days is the right answer

7.5 or7 1/2 is right answer.

7.5 is the right answer

all that is given is right

all ans is right ans given by students

4/30= 2/152/21 is the correct answer

7.5 days is right answer

ye to answer hi h bhai

X=7.5 is answer...........

x=7.5 days

correct answer for this question

7.5 day is the right answer

7.5 day is correct answer for your questions

7.5 day is correct answer

{1/12×160/100}=160/1200when devide 80 to=2/15

69934.

r 20°Fig. 10b

Answer»

(x+20)+(3x-8)=1804x+12=1804x=168x=42

69935.

Fig. 10.25re of each of the equal angles of a right-angled isosceles trianglepetermine the measurOR

Answer»

Sum ofall angles inatrianglein always 180 degree. ✏So, first is 90 degree as it isright angled triangle. Since themeasureofequal anglesis 45 degree.

69936.

(15a-12)÷[4_5a)

Answer»
69937.

15a^2-34a+15=0 simplify

Answer»

Thanks

69938.

: Subtract 15a -4b-e from the sum of the polynomials 3a + 2b+ c and140-3b 8e

Answer»

(3a+2b+c) +(14a-3b+8c) - (15a-4b-7c)= 18a-15a + 6b-3b +9c+7c= 3a +3b +16c

69939.

J1DOEBlyjorreadingthequmencem. The duration mentioned in the question paper header, i the actuot.Marks of the respective question are given in [ 1estion papeSection AAttempt all questions fromQuestion 1373: Ramesh invests12800 for three years at the rate of 10%findi. The sum due to Ramesh at the end of 1st year.li. The interest he earns for 2nd yearii. The total amount due to him at the end of 3"d year.iv. Compound interest at the end of 3 years.b.Rationalise the denominator:7-3 V5

Answer»
69940.

prontAn aeroplane can carry a maximum of 200 passengers. A profit of Rs 1000 ismade on each executive class ticket and a profit of Rs 600 is made on eacheconomy class ticket. The airline reserves at least 20 seats for eHowever, at least 4 times as many passengers prefer to travel by economy clathan by the executive class. Determine how many tickets of each type must besold in order to maximise the profit for the airline. What is the maximum protit5.xecutive classss

Answer»

bro how u took Z=400x+600y

69941.

5. An aeroplane can carry a maximum of 200 passengers. A profit of Rs 1000 ismade on each executive class ticket and a profit of Rs 600 is made on eacheconomy class ticket. The airline reserves at least 20 seats for executive classHowever, at least 4 times as many passengers prefer to trayel by economy classthan by the executive class. Determine how many tickets of each type must besold in order to maximise the profit for the airline. What is the maximum profit?

Answer»
69942.

The mean of 10, 15, x, 5, 15 is 15. What is the value of x ?

Answer»

As mean of numbers 10, 15, x, 5, 15 is 15

Mean = sum of observations /Number of observations

Hence,15 = (10+15+x+5+15)/575 = 45 + xx = 75 - 45x = 30

Therefore, value of x = 30

69943.

x/7+y/15=3, x/2-y/5=15

Answer»

15x+7y/105=3, =5x -2y /10=1515x +7y =3×1055x-2y =15×1015x+7y=315. (1)5x-2y=150. (2)(2) multiplying 315x-6y=450(1)- (2)9y=165y. =165/9y=18.333is the correct answers

y = 18.333 is the best answer.

69944.

in the blanks -9.-18+6=6+.10. 15+ ___=(-5)+15

Answer»

9. -18+6=6+(-18)10. 15+(-5)=(-5)+15

69945.

Solve and give the positive value of x whichsatisfies the given equation:(2x + 4)--(x-5)2 = 26x10

Answer»

(2x+4)² -(x-5)² = 26x

=> 4x²+16x+16 -x²-25+10x = 26x=> 3x²+26x -9 = 26x=> 3x² = 9=> x² = 9/3 = 3=> x = ±√3

so, positive Value of x = √3

69946.

EXERCISE 10Bpetermine if the following numbers are in proportion:(1) 4, 6, 8, 12(iv) 22, 33, 42, 63(ii) 7, 42, 13, 78(v) 32, 48, 70, 210iii) 33, 121,9, 96(vi) 150, 200, 250, 300Verify the following:

Answer»
69947.

9Pair of Linear Equations in Two Variables3. The larger of two supplementary angles exceeds the smaller by 18°. Find the angles.

Answer»

Let the angles be x and 180 - x.180 - x = x - 18 2x = 198 x = 99°180 - x = 180 - 99 = 81°

69948.

EXERCISE 3,Find the complement of each of the following angles1.63°57°20°(mi)

Answer»

Sum of complementary angles is 90 degrees.

i) Complement = 90-20 =70 degree

2) Complement =90-63=27 degree

3) Complement =90-57 =33 degree

69949.

EXERCISE 15A1. In a AABC, if ZA-720 and B -63, find C.

Answer»

sum of angles of a triangle = 180<A+<B+<C= 18072+63+<C= 180c=180-135c=45

69950.

10. Dimple earns147 interest after 3 years at 7% per annum. How much did she invest?

Answer»