A draws a card from a pack of n cards marked 1, 2, 3…n. The card is replaced in the pack and B draws a card. Then the probability that A draws a higher card than B is

Question : A draws a card from a pack of n cards marked 1, 2, 3…n. The card is replaced in the pack and B draws a card. Then the probability that A draws a higher card than B is

(A) (n+1)2n

(B) 1/2

(C) (n-1)/2n

(D) none of these

Answer : option (C)

Solution :

A draws a card from a pack of n cards marked 1, 2, 3...n. The card is replaced in the pack and B draws a card. Then the probability that A draws a higher card than B is
A draws a card from a pack of n cards marked 1, 2, 3...n. The card is replaced in the pack and B draws a card. Then the probability that A draws a higher card than B is
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