In how many ways 4 women draw water from 4 taps,

Number of ways to draw water from the 1st tap = Number of women available to draw water = 4

Number of ways to draw water from the 2nd tap = Number of women available to draw water = 3

Number of ways to draw water from the 3rd tap = Number of women available to draw water = 2

Number of ways to draw water from the 4th tap = Number of women available to draw water = 1

$\therefore$ Total number of ways $=4 \times 3 \times 2 \times 1=4 !=24$