1. Time yourself
2. Solve as fast as you can
3. Write your solution here, and your time please
16 men are divided equally into 4 groups, how many such groupings can be made?
a. 16C4 *12C4 * 8C4 *4C4
b. 1/4! * 16C4* 12C4*8C4 *4C4
c. 1/4! * 16P4 * 12P4 *8P4 *4P4
d. 1/24 * 16P4 * 12P4*8P4 * 4P4
e. 16/ 4!
halle. is correct.
had the groups been different from each other, A would have been the correct answer. but since the groups are indistinguishable , we have to divide A by 4! ...which gives us B.