Question

Cards numbered from 11 to 60 are kept in a box. If a card is drawn at random from the box, find the probability that the number on the drawn card is:

(i) an odd number. (ii) a perfect square number. (iii) divisible by 5. (iv) a prime number less than 20.

Answer 1

No. of possible outcomes = 60 -11+1 = 50.

(i) An odd number

Favourable outcomes:11,13, 15,17,19,21,23,25,27,29,31,33,35,37,39,41,43, 5,47, 49, 51 , 53, 55, 57, 59