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Find the least number which when multiplied with 74088 will make it a perfect square ? 
A) 42
B) 44
C) 46
D) 48
Correct Answer : 42 Explanation : 74088 = 2 * 2 * 2 * 3 * 3 * 3 * 7 * 7 * 7 
Find the least number by which 175760 be devided to make it a perfect cube ? 
A) 10
B) 20
C) 100
D) 5
Correct Answer : 10 Explanation : 175760 = 2^{4} x 5 x 13 ^{3} 
√(248 + √(52+ √144)) = ? 
A) 14
B) 16
C) 16.6
D) 18.8
Correct Answer : 16 Explanation : √(248 + √(52 + √144)) 
250 / √? = 10 
A) 25
B) 250
C) 625
D) 2500
Correct Answer : 625 Explanation : Let 250 / √x = 10. 

√(4/3)  √(3/4) = ? 
A) 1/2√3
B)  1/2√3
C) 1
D) 2√3
Correct Answer : 1/2√3 Explanation : √(4/3)  √(3/4) 
If √2^{n} = 64, then the value of n is ? 
A) 2
B) 4
C) 6
D) 12
Correct Answer : 12 Explanation : √2^{n} = 64 
(√5  √3)/ (√5 + √3) is equal to ? 
A) 4 + √15
B) 4  √15
C) 1/2
D) 1
Correct Answer : 4  √15 Explanation : (√5  √3)/ (√5 + √3) 

^{3}√(0.027/0.125) = ? 
A) 0.6
B) 0.3
C) 0.5
D) 0.2
Correct Answer : 0.6 Explanation : ^{3}√(27*1000/125*1000) => ^{3}√(27/125) => ^{3}√27 / ^{3}√125 
The largest three digit number which is a perfect cube is? 
A) 986
B) 729
C) 981
D) 864
Correct Answer : 729 Explanation : 9^{3} = 729 and 10^{3} = 1000 
^{3}√(√ 729) = ? 
A) 9
B) 3
C) 8
D) 6
Correct Answer : 3 Explanation : ^{3}√(√ 729) = ^{3}√(√ (27^{2}))= ^{3}√27 
What is the smallest number by which 1400 be divided to make it a perfect cube? 
A) 130
B) 145
C) 160
D) 175
Correct Answer : 175 Explanation : 1400 = 2^{3} * 5^{2 }* 7 
Find the least number by which 175760 be multiplied to make it a perfect cube? 
A) 100
B) 160
C) 80
D) 27
Correct Answer : 100 Explanation : 175760 = 2^{4} *5 *13^{3} 