Question

Cards bearing numbers 1 3 5 .....35 are kept in a bag .A card is drawn at random from the bag .Find the probability of getting a card dering 1)a prime number less than 15. 2)a number divisible by 3 and 5

Answer 1

Answer:1. 5/18   2. 1/18

Step-by-step explanation:

Total no of outcomes = 18

1) prime numbers less than 15 are 3, 5, 7, 11, 13

so favourite outcomes = 5

probability = favourite outcomes / Total no of outcomes

P = 5/18

2) numbers divisible by 3 and 5 is 15

so favourite outcome = 1

probability = favourite outcomes / Total no of outcomes

P = 1/18