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During a draw of lottery, tickets bearin...

During a draw of lottery, tickets bearing numbers 1, 2, 3,......, 40, 6 tickets are drawn out & then arranged in the descending order of their numbers. In how many ways, it is possible to have 4 ticket bearing number 25.

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The correct Answer is:
`""^(24)C_(2).""^(15)C_(3)`
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MOTION-THEORY AND EXERCISE BOOK-EXERCISE -3
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  18. The number of ways of forming the committee, is

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