Question

A box contains 80discs which are numbered from 1-80 . If one disc is drawn at random from the box, find the probability that it bears a perfect square number.

Answer 1

Answer:

$\huge\fcolorbox{black}{pink}{Answer-}$

Possible outcomes :

4,9,16,25,36,49,64

Therefore ;

P(E) = 7 / 79

Hope it helps