DIRECTIONS for the question:Solve the following question and mark the best possible option.
A man has six children. He wants to take them to a zoo, three at a time without taking same set of three children again. In how many ways he can do this?
A)
120
B)
6!
C)
30
D)
None of these
D
We have to make selection of 3 out of total of 6 children. Therefore, total no of ways = 6C3 = 20