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27 Mar 2004, 20:45
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N
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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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!
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!
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27 Mar 2004, 20:51
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well, the groups are indistinguishable. So, the answer is B.
28 Mar 2004, 04:03
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First group-16C4, second group-12C4, third group-8C4, last group-4C4. Rewritten-16!/4!4!4!4! or i believe A) is the answer
