In how many different number of ways 4 boys and 2 girls can sit on a bench?
Options.
A) 700  B) 710  C) 720  D) 800  E) 820
npn = n!   6p6 = 6 × 5 × 4 × 3 × 2 × 1 = 720   720)
<result>C</result>
In how many different number of ways 4 boys and 2 girls can sit on a bench?