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Three numbers are selected at random one...

Three numbers are selected at random one by one with replacement from the numbers 1,2,3,….60. The probability that the A.M. of the numbers selected is 15 is.

A

`(.^(48)C_(2))/(.^(60)C_(3))`

B

`(.^(47)C_(2))/(.^(60)C_(3))`

C

`(.^(44)C_(2))/((60)^3)`

D

`(.^(45)C_(2))/((60)^3)`

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