Question

100card marked 2to101are placed in box mixed .one card drawn randomly from it find probability that no. On card is 1) even no. 3) a prime no. Less than 20

Answer 1

Total cards = 100

1) P(E) even no. = 50/100 = 1/2

2) P(E) Prime no. less than 20 = 8/100 = 4/50 = 2/25