Question

Sue has 10 pictures but only has space in her apartment to hang 4 of them on a wall. The number of different arrangements of four pictures from a selection of ten pictures is:

Answer 1

Step-by-step explanation:

Number of areangements = 10C4

= 10 * 9 * 8 * 7 / (1 * 2 * 3 * 4) = 210.