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Three balls are drawn at random from col...

Three balls are drawn at random from collection of 7 white, 12 green and 4 red balls, The probability that each ball is of different colours is……….

A

`(.^(7)C_(1)xx.^(12)C_(1)xx.^(4)C_(1))/(.^(23)C_(3))`

B

`(8)/(253)`

C

`(4)/(253)`

D

`(1)/(253)`

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The correct Answer is:
A
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