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 - √64009= ?

A - 803

B - 363

C - 253

D - 347

Answer : C

Explanation

√64009 = √(253 x 253) = 253

Q 2 - √4375/√7 = ?

A - 24.75

B - 27.25

C - 25

D - 35

Answer : C

Explanation

√4375/√7 = √4375/√7 = √625 = 25

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 - √88209 = ?

A - 187

B - 244

C - 257

D - 297

Answer : D

Explanation

√88209= √297*297 = 297

Q 5 - if √256 /√x= 2, then x is equal to:

A - 64

B - 128

C - 512

D - 1024

Answer : A

Explanation

let √256/√x =2 . then √x= √256/2 = 16/2 =8 ⇒ x=(8*8) =64

Q 6 - if 52/x=√(169/289), Then the value of x is

A - 52

B - 58

C - 62

D - 68

Answer : D

Explanation

52/x  = √169/289 = 13/17
∴  13x =(52*17) ⇒ x=(52*17)/13 =68

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 3√5+√125 = 17.84 , then √80+ 6√5=?

A - 20.2

B - 20.4

C - 21.8

D - 2.33

Answer : D

Explanation

3√5+√25*5= 17.84 ⇒3√5+5√5 =17.84 ⇒8√5= 17.84 ⇒√5= 2.33

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 - √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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