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In how many different ways can a group of 9 people be divide

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Joined: 03 Jun 2019
Posts: 3235
Location: India
GMAT 1: 690 Q50 V34
WE: Engineering (Transportation)
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In how many different ways can a group of 9 people be divide  [#permalink]

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New post 13 Sep 2019, 11:58
hemanthp wrote:
In how many different ways can a group of 9 people be divided into 3 groups, with each group containing 3 people?

A. 280
B. 1,260
C. 1,680
D. 2,520
E. 3,360


Asked: In how many different ways can a group of 9 people be divided into 3 groups, with each group containing 3 people?

Number of ways = (9C3 * 6C3 * 3C3)/3! = (84 * 20 * 1)/6 = 1680/6 = 280

IMO A
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In how many different ways can a group of 9 people be divide   [#permalink] 13 Sep 2019, 11:58

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