In how many different number of ways 7 boys and 4 girls can sit on a shopa which can accommodate 3 persons?  Options
A) 800
B) 900
C) 200
D) 990
E) None
Option '990'   11p3 = 11x10x9 = 990
<result>D</result>
In how many different number of ways 7 boys and 4 girls can sit on a shopa which can accommodate 3 persons?