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If 7 squares are chosen at random on a c...

If 7 squares are chosen at random on a chess board, the probability that they lie on a diagonal line is

A

`(10)/(.^(64)C_(7))`

B

`(12)/(.^(64)C_(7))`

C

`(20)/(.^(64)C_(7))`

D

`(24)/(.^(64)C_(7))`

Text Solution

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The correct Answer is:
C
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