In how many different number of ways 5 boys and 4 girls can sit on a bench?
Options:
A) 700  B) 710  C) 720  D) 362880  E) 740
npn = n!   9p9 = 9 X 8 X 7 X 6 Ã— 5 Ã— 4 Ã— 3 Ã— 2 Ã— 1 = 362880   362880
<result>D</result>
In how many different number of ways 5 boys and 4 girls can sit on a bench?