Aptitude - Squares & Cubes Online Quiz



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

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 - √0.729/ √0.00841 =?

A - 262/29

B - 263/29

C - 264/29

D - 270/29

Answer : D

Explanation

Given exp.= √ 0.72900/0.00841= √ 72900/841 = 270/29

Q 4 - √0.00059049 = ?

A - 0.243

B - 0.0243

C - 0.00243

D - 0.000243

Answer : B

Explanation

given expression  =√59049/100000000 = 243/10000 = 0.0243

Answer : C

Explanation

√0.04  = √4/100 =2/10 = 0.2

Q 6 - √ (25/81-1/9) = ?

A - 2/3

B - 4/9

C - 16/81

D - 25/81

Answer : B

Explanation

   √ (25/81-1/9) =√ (25-9)/81   = √16/81  = 4/9 

Q 7 - if √4096=64 , then the value of (√40.96 + √ 0.4096 + √0.004096 + √ 0.00004096) up to two places of decimal is :

A - 7.09

B - 7.10

C - 7.11

D - 7.12

Answer : C

Explanation

Given exp . √ 4096/100 +√ 4096/10000+√ 4096/1000000+√ 4096/100000000
=(64/10+ 64/100+64/1000+64/10000)= (6.4+0.64+0.064+0.0064+0.0064)= 7.11

Q 8 - ( √3- 1/√3)2= ?

A - 1/3

B - 4/3

C - 7/3

D - 10/3

Answer : B

Explanation

(√3-1/√3)2= (√3)2+(1/√3)2-2* √3*1/√3=  (3+1/3-2) =(1+1/3)=4/3

Q 9 - if √3=1.732, then the value of 1/√3 is:

A - 0.617

B - 0.313

C - 0.577

D - 0.173

Answer : C

Explanation

1/√3 = 1/√3*√3/√3= 3√3/3 = 1.732/3=   0.577.

Q 10 - √0.4 =?

A - 0.2

B - 0.02

C - 2

D - 0.632

Answer : D

Explanation

√0.4 = √ 0.632 * 0.632 = 0.632
aptitude_squares_cubes.htm
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