In how many different number of ways 1 boy and 4 girls can sit on a bench? Select:
A) 120
B) 140
C) 160
D) 180
E) 200
npn = n!   5p5 = 5 × 4 × 3 × 2 × 1 = 120   120)
<result>A</result>
In how many different number of ways 1 boy and 4 girls can sit on a bench?