Question

Cards marked with numbers 13,14,15,…, 60 are placed in a box and mixed thoroughly. One card is drawn at random from the box. Find the probability that number on the drawn card is 

(i) divisible by 5. 

(ii) a number which is a perfect square.

Answer 1

(i) number divisible by 5

15,20,25,30,35,40,45,50,55,60

P(divisible by 5) = 10/48

(ii) 16,25,36,49

P(a number which is a perfect square) = 4/48