Question

From a set of 30 balls, one is drawn at random. Find the probability of getting a multiple of 3 or 5

Answer 1

total balls = 30

p(e) = no.of ball / total no. of balls

= 3/30

= 1/10

probability of getting a 3 multiple is 10

p(e) = no.of ball / total no. of balls

= 5/10

= 1/2

= 2

probability of getting a 5 multiple is 2