Question

a bag contains ticket which are numbered from 1 to 100 find the probability that a ticket number picked up at random (1) is a multiple of 7? (2) is not a multiple of 7?

Answer 1

1) There are 14 no. which is multiple of 7 bw 1 to 100 and and we have to 100 no . then ...by 100C7 ..we can find our answer