Question

. A box contains cards rumbered from 1 to 27. A card is drawn at random from the box. Find
he probability that number on the drawn card is (i) a prime number (ii) a composite number
i) a number divisible by 4

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Answer 1

Answer:

1. Prime nis. Between 1 to 27. = 1,2,3, 5,7,11,13,17,19,23

P(E) = 10/27

2. Composite nos. = P(NOT E) = 1- 10/27 = 17/27

3. Nos. Divisible by 4 = 4,8,12,16,20,24

P(E2) = 6/27