Question

Cards with numbers 1,2,3,....50 are placed in a box and mixed thoroughly . one card is drawn what is the probability that the card drawn is (1.)
a prime number less than 20 (2). a multiple of 4 (3).factors of30

Answer 1

i hope it help you......

Answer 2

(1)The card drawn is 1:
no. of favrabol outcome /no. of total outcome
= 1/50

(2)a Prime no.less than 20:
no. of favourable outcomes/ number of Total outcomes
=7/50

(3) a multiple of 4:
number of favourable outcomes/ total outcomes
=9/50

Hope This will help you