Aptitude - Squares & Cubes Online Quiz


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Following quiz provides Multiple Choice Questions (MCQs) related to Squares & Cubes. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - √2500 +√961 = (?)2

A - 81

B - 3

C - 6561

D - 9

Answer : D

Explanation

Let √(√2500+√961) =x2. Then
x2= √(50+31) = √81= 9. ∴ x = √9 = 3

Q 2 - √288/√128 =?

A - √3/2

B - 2/√3

C - 3/2

D - √3/21

Answer : C

Explanation

√288/√128 =√(288/128) = √(144/64) = √144/√64 =12/8 =3/2

Q 3 - if √2ⁿ=64, Then the value of n is:

A - 2

B - 4

C - 6

D - 12

Answer : D

Explanation

√2ⁿ = 64= 2⁶⇒ 2ⁿꜘ2=2⁶⇒n/2=6 ⇒ n=12.

Q 4 - √4225-√1225+6 =√?

A - 1156

B - 1296

C - 1444

D - 1600

Answer : B

Explanation

√4225-√1225 +6=(65-35+6)=36.
Let  √x=36 .Then x =(36*36)=1296

Q 5 - 0.0196/? = 0.2

A - 0.49

B - 0.7

C - 4.9

D - none of these

Answer : A

Explanation

let √0.196/x = 0.2. then, 0.0196/x = (0.2)2=0.04
∴ 0.04*x = 0.0196 ⇒ x= 0.0196/0.0400= 196/400 = 49/100= 0.49

Q 6 - If x * √0.0016 = 4 , then the value of x is :

A - 0.04

B - 4

C - 25

D - 100

Answer : D

Explanation

√0.0016 =  √16/10000  = 4/100 =0.04
∴ x*0.04 =4 ⇒ x = 4/0.04=  4*100/4 =100

Q 7 - if √15 = 3.88, then what is the value of √5/3?

A - 1.29

B - 1.2934

C - 1.293

D - 1.295

Answer : C

Explanation

√5/3 = √15*9=  3.88/3  =1.293

Q 8 - if G = H +√ 4/L, Then L = ?

A - 4(G2-H2)

B - 4/(G2-H2)

C - 4(G-H)2

D - 4/(G-H)2

Answer : D

Explanation

(G-H)=√4/L  ⇒ (G-H)2=4/L ⇒ L =4/(G-H)2

Q 9 - if √2 =1.4142, then the value of √2/9 is:

A - 0.2321

B - 0.4714

C - 0.3174

D - 0.4174

Answer : B

Explanation

√2/9 = √2/3 = 1.4142/3  = 0.4714

Q 10 - √0.064 = ?

A - 0.8

B - 0.08

C - 0.008

D - 0.252

Answer : D

Explanation

√0.064 = √ 0.252 * 0.252 = 0.252


aptitude_squares_cubes.htm

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