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A box contains 2 fifty paise coins, 5 tw...

A box contains 2 fifty paise coins, 5 twenty five paise coins and a certain fixed number n`(ge2)` of ten and five paise coins. Five coins are taken out of the box at random. Find the probability that the total value of these 5 coins is less than one rupee and fifty paise.

Text Solution

Verified by Experts

The correct Answer is:
`1 - (10 (n + 2))/( ""^(n + 7) C_(5))`
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