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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.

Q 1 - {(√529*36)/48}*? = 5847.75

Answer : B

Explanation

Let { (√529*36)/ 48}*x=5847.75
Then, (23*36/ 34 )*x =5847.75 ⇒ x= 5847.75*4/69 = 23391/69 = 339

Q 2 - 248 + √ 52 +√144

Answer : B

Explanation

Given exp.= √248  +√52+12  = √248+ √64 = √248+8   =√256 = 16

Q 3 - √0.729/ √0.00841 =?

Answer : D

Explanation

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

Q 4 - 0.01 + 0.0064=?

Answer : A

Explanation

√0.001 + √0.0064 = √0.01+0.08  = √0.09 = 0.3

Q 5 - The square root of (0.09+2 *0.21 +0.49) is

Answer : B

Explanation

(0.09+2*0.21+0.49)= (0.3)²+(0.7)²+2*0.3*0.7= (0.3+0.7)²=1²=1
∴√ 0.09 +2*0.21+0.49 = √1 =  1

Q 6 - √0.00004761 = ?

Answer : B

Explanation

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

Q 7 - if √1296 = 36 , then the value of (√12.96 + √0.1296 + √0.001296 + √0.00001296 is:

Answer : B

Explanation

Given Exp .  = √1296/100 + √1296/10000 +√1296/ 1000000+ √1296/100000000
=(36/10+ 36/100+36/1000+ 36/10000 ) =(3.6+0.36+0.036+0.0036)= 3.9996.

Q 8 - if G = H +√ 4/L, Then L = ?

Answer : D

Explanation

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

Q 9 - if √2401 = √7ͯ Then x=?

Answer : B

Explanation

√2401 = √7ͯ ⇒ √7ͯ =49
= 7ͯ =49*49= 7²*7² = 7⁴
⇒x=4

Q 10 - 1250 oranges were distributed among a group of girls of a class. Each girls got twice as many oranges as the number of girls in that group . The number of the girls was :

Answer : A

Explanation

let there be x girls in the group. Each girl got 2x oranges.
∴ 2x*x = 1250  ⇒ 2x² =1250  ⇒ x² =625 ⇒ x= √625  =25
Number of girls in the group= 25

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