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Permutation and Combination

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Source: — Data Sufficiency |

by pemdas » Fri May 06, 2011 9:49 am
C(10,4)=10!/(4!*6!)=210

IOM e
naveenhv wrote:What is the number of different committees of 4 people that can be selected from a group of 10 people?

a) 20

b) 40

c) 80

d) 120

e) 210
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