Question

(c) Some identical cards are numbered from 2 to 25 and well shuffled.
When a card is drawn randomly, what is the probability that the card has:
(i) a prime number
(ii) a multiple of 2 and 3
(iii) not a multiple of 7.
(iv) a perfect cube number.​

Answer 1

1. prime numbers are 2,3,5,7,11,13,17,19,23 so the probability of getting prime number is 9/24
2. multiple of 2and 3is 6,12 so the probability of getting multiple of 2,3 is 2/24
3. probability of getting not a multiple of 7 is 21/24
4. perfect cube number up 25 is only 8 so the probability of getting perfect cube number is 1/24