Question

Cards marked with numbers $4$ to $99$ are placed in a box and mixed thoughtly. One card is drawn from this box. Find the probability that the number on the card is a perfect square.

Answer 1

We have,

Total number of cards$=96$

Perfect squares numbers are $=(4,9,16,25,36,49,64,81)$

Numbers are $=8$

Then,

Probability of Perfect squares numbers are$=\frac{8}{96}=\frac{1}{12}$

Hence, this is the answer.