20 cards are numbered from 1 to 20. One card is then drawn at random. What is the probability that
Channel: Doubtnut
Date: 2020-01-03

20 cards are numbered from 1 to 20. One card is then drawn at random. What is the probability that the number on the card drawn is (i) a prime number ? (ii) an odd number ? (iii) a multiple of 5? (iv) not divisible by 3 ?