Ramesh Mahesh and Suresh throw a dice in succession till one gets a lsquo six rsquo and wins the gam...........

Quantitative Aptitiude (CLAT) Probability

Ramesh, Mahesh and Suresh throw a dice in succession till one gets a ‘six’ and wins the game. Then the probability of Ramesh’s winning is:

25/91

36/91

31/90

None of these

Explanation:

Solution: P (throwing a ‘six’ in a single throw) = 1/6
And P (not throwing a six in a single throw) = 5/6
Suppose that Ramesh has the first throw, then Ramesh wins at 1st, 4th, 7th, 10th, ……… throw and all these ways of winning are mutually exclusive.