2) Tickets numbered 1 to 50 are mixed and one ticket is drawn at random. Find
the probability that the ticket drawn has a number which is a multiple of 4 or
7?

4) Two friends A and B apply for a job in the same company. The chances of A
getting selected is 2/5 and that of B is 4/7. What is the probability that both
of them get selected?

a) 8/35
b) 34/35
c) 27/35
d) None of these

Solution:

P(A) = 2/5
P(B) = 4/7
E = {A and B both get selected}
P(E) = P(A)*P(B)
= 2/5 * 4/7
= 8/35