Question

a box contain 20 card. 1to 20 card is drawn random from the box find the probability that the number drawn card. (i) divisible by 2 or 3 (ii) prime number​

Answer 1

Answer:

Step-by-step explanation:

No. of possible outcomes  = 20

(i) Total no. divisible by 2 or 3 = 6, 12, 18 = 3

P(divisible by 2 or 3) = 3/20

(ii) Prime numbers = 2,3,5,7,11,13,17,19 = 8

P(a prime no.) = 8/20 = 2/5

Answer 2

Answer:

Step-by-step explanation:

1) favorable outcomes 2 3 4 6 8 9 10 12 14 15 16 18 20

Total no of outcomes =20

No. Favorable outcomes= 13

P(E)= 13/20

2) no.favorable outcomes= 8

P(E) =8/20

=2/5