Every Saturday five students go on a picnic; a different group of students is being sent each week. During the picnic, each girl in the group is given a doll by the accompanying teacher. All possible groups of five have gone once, the total number of dolls the girls have got is:
A. 21
B. 45
C. 27
D. 24
Best Answer
Ans: B
Sol: The number of times, a girl goes on picnic = 6C4
