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In how many ways can 4 women draw water from 4 taps if no tap remains unused?

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Given: We have 4 women and 4 tap

To Find: Number of ways of drawing water 

Condition: No tap remains unused 

Let us represent the arrangement

4 ways 3 ways 2 ways 1 ways

The first woman can use any of the four taps = 4 Ways 

The second woman can use the remaining three taps = 3 ways 

The third woman can use the remaining two taps = 2 ways 

The fourth woman can use the remaining one tap = 1 way 

Total number of ways = 4 × 3 × 2 × 1 = 24 

There is 24 number of ways in which 4 women can draw water from 4 taps such that no tap remains unused.

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