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A pair of fair dice is rolled together t...

A pair of fair dice is rolled together till a sum either 5 or 7 is obtained. The probability that a sum of 5 is thrown before 7 is

A

`(1)/(5)`

B

`(2)/(5)`

C

`(3)/(5)`

D

`(4)/(5)`

Text Solution

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The correct Answer is:
B
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