Question

A bag contains 15 cards. The numbers 1,2,3,4, ,15 are printed on them. A card is at random drawn from the bag. Find the probability that the number on the card is
1) A prime no.
2) A no is divisible by 2

Answer 1

answer:

1) 6/15

2) 7/15

step by step:

Total cards: 15

1) Prime no. : 2, 3, 5, 7, 11, 13

P(E)= 6/15

2) Even no. : 2, 4, 6, 8, 10, 12, 14

P(E)= 7/15