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Three numbers are chosen at random from ...

Three numbers are chosen at random from the first 20 natural numbers. Then the probability that their product is odd is

A

`(.^(10)C_(3))/(.^(20)C_(3))`

B

`1-(.^(10)C_(3))/(.^(20)C_(3))`

C

`((.^(10)C_(1))^(3))/(.^(20)C_(3))`

D

`(.^(10)C_(1))/(.^(20)C_(3))`

Text Solution

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The correct Answer is:
A
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