Question

In how many ways can 5 man draw water from 5 taps if no tap can be used more than once? ​

Answer 1

Answer : 120

step by step explanation :

•1st man can draw water from any of the 5 taps

•2nd man can draw water from any of the remaining 4 taps

•3rd man can draw water from any of the remaining 3 taps

•4th man can draw water from any of the remaining 2 taps

•5th man can draw water from remaining 1 tap

5 / 4 / 3 / 2 / 1

Hence total number of ways = 5 x 4 x 3 x 2 x 1 = 120