Permutation: n Different Things Taken All at a Time When All Are Not Different.
In how many w...
Question
In how many ways can 5 men can draw water from 5 taps if no tap can be used more than once?
A
120
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B
75
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C
32
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D
62
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Solution
The correct option is B120 First man have 5 taps to choose, second man have 4 taps to choose, third man have 3 taps to choose, fourth man have 2 tap to choose and fifth man have 1 tap to choose
So, total number of ways is 5!=120 choice for this situation.