Q 1212012839.     Fifteen coupons are numbered `1, 2, ..., 15`, respectively. Seven coupons are selected at random one at a time with replacement. Find the probability that the largest number appearing on a selected coupon is `9`.

JEE 1983
A

None of these

B

`(3/5)^5`

C

`(3/16)^6`

D

`(8/13)^7`

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