Wipro Company Numerical Ability Probability

A bag contains 7 green and 8 white balls.If two balls are drawn simutaneously,the probability that both are of the same colour is
a)8/15 b)7/15 c)3/5 d)8/15

Read Solution (Total 1)

p=(7c2+8c2)/15c2
on solving=ans is=7/15(b)
10 years agoHelpfull: Yes(2) No(0)

Wipro Other Question

If P(A) = 0.75 and B is an event which is mutually exclusive with A,P(A intersection B)=
a)0.25 b)0.35 c)0.81 d)none If 3 dice are thrown, the probability of getting an even number on each die is
a)4/9 b)3/4 c)3/16 d)1/8