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Seven chits are numbered 1 to 7. Four ch...

Seven chits are numbered 1 to 7. Four chits are drawn one by one with replacment. The probability that the least number appearing on any selected chit is 5 is :

A

`(3/7)^4`

B

`(6/7)^3`

C

`(5xx4xx3)/(7^3)`

D

`(3/4)^4`

Text Solution

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The correct Answer is:
A
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