Q. 124.3( 3 Votes )

A box contains 20 cards, numbered from 1 to 20. A card is drawn from the box at random. Find the probability that the number on the card drawn is (i) even (ii) prime and (iii) multiple of 3

Answer :

Even number = 2,4,6,8,10,12,14,16,18,20

Prime Number = 2,3,5,7,11,13,17,19

Multiple of 3 = 3,6,9,12,15,18

(i)Probability of getting an Even Number =

(ii)Probability of getting a prime number =

(iii)Probability of getting a multiple of 3 =

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