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 - 6250/ √? = 625

A - 100

B - 95

C - 110

D - 105

Answer : A

Explanation

Let 6250/√x=  625. Then √x= 6250/625 = 10 ⇒ 100

Answer : B

Explanation

√25/16  = 5/4

Q 3 - The square root of (1.44*0.81)/(0.9 * 3.6) is:

A - 0.6

B - 0.5

C - 1

D - 0.75

Answer : A

Explanation

Given exp =(144*81/900*36) ⁱꜘ2 =12*9/30*6 =3/5 =0.6

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 - √0.441 /√0.625 = ?

A - 0.048

B - 0.084

C - 0.48

D - 0.84

Answer : D

Explanation

√0.441/√0.625 = √441/625  =21/25= 0.84
[As, No. of decimel places in Nr = no.of decimal places in dr]

Q 6 - √0.00004761 = ?

A - 0.00069

B - 0.0069

C - 0.0609

D - 0.069

Answer : B

Explanation

√  0.00004761  =  √4761/100000000  =69/10000=  0.0069

Q 7 - If √15625 = 125, then the value of(√15625+ √156.25+ √1.5625) is

A - 1.3875

B - 13.875

C - 138.75

D - 156.25

Answer : C

Explanation

given exp.  √15625 + √ 15625/100 +√15625/10000
(125+125/10+125/100)= (125+12.5+1.25) = 138.75

Q 8 - if √0.05* 0.5*a = 0.5*0.05 *√b, then a/b=?

A - 0.0025

B - 0.025

C - o.25

D - 25

Answer : B

Explanation

√a/√b = 0.5*0.05/√0.05* 0.5 =  √0.5*0.05  ⇒ a/b
 =(0.5*0.05) = 0.025

Q 9 - (√7+ √5 )/(√7-√5) = ?

A - 1

B - 6+√35

C - 2

D - 6-√35

Answer : B

Explanation

(√7+√5/√7-√5)= (√7+√5/√7-√5)* (√7+√5/√7+√5)
=((√7+√5)2/(7-5)  = 7+5+2√35/2= 12+2√35/2  =6+√35

Q 10 - An army general wants to form a solid square from 36562 armies. After arrangement , he found some armies left. How many armies were left ?

A - 36

B - 65

C - 81

D - 97

Answer : C

Explanation

 191 * 191 = 36481, ∴ armies left = 36562 - 36481 = 81


aptitude_squares_cubes.htm

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