Question

A bag contains cards numbered 1 to 49. Find the probability that the number on the drawn card is:

(i) an odd number

(ii) a multiple of 5

(iii) Even prime

Answer 1

Total cards = 49

Odd No. 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49 = 25

(i) P(odd number) = 25/49

Multiple of 5 are 5, 10 ,15, 20, 25, 30, 35, 40, 45 = 9

(ii) P(multiple of 5) = 9/49

Only even prime number is = 2

(iii) P(even prime) = 1/49