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Good Questions

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Master | Next Rank: 500 Posts
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Good Questions

by bacali » Sat Jan 17, 2009 3:35 pm
How many different 6-letter sequences are there that consist of 1 A, 2 B's, and 3 C's?

A) 6
B) 60
C) 120
D) 360
E) 720


OA:

B
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by sonu_thekool » Sat Jan 17, 2009 3:39 pm
This is an anagram in the form ABBCCC

So, total ways = 6! / (3! * 2!) = 120 / 2 = 60
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