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(Q) If a number is chosen at random from the set {1, 2, 3, ...., 100}, then the probability that the chosen number is a perfect cube is ?

A) 2/15
B) 1/25
C) 2/4
D) 1/10

View Answer B) 1/25

Explanation :
We have 1, 8, 27 and 64 as perfect cubes from 1 to 100.
Thus, the probability of picking a perfect cube is :
4/100 = 1/25.
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