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Get access to the detailed solutions to the previous years questions asked in IIFT exam
Probability of Ishu winning in first round = P(Shanu tail)P(Ishu head) = 1/2 x 1/2 = (1/2)2
Probability of Ishu winning in second round = P(Shanu tail)P(Ishu tail)P(Shanu tail)P(Ishu head) = (1/2)4
Similarly, calculating for further rounds we get Probability = (1/2)2 + (1/2)4 + (1/2)6 + ..... = 1/3
Answer is option A.