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16 Sep 2019, 07:05
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
95% (00:43) correct
5%
(01:16)
wrong
based on 649
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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
A. 20
B. 40
C. 80
D. 120
E. 210
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16 Sep 2019, 07:13
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Hello,
Out of 10 people, we need to select 4 people and this can be done in 10C4 ways.
10C4 can be written as 10!/6!*4! = 210 ways. Option E.
Regards,
Vivek
Out of 10 people, we need to select 4 people and this can be done in 10C4 ways.
10C4 can be written as 10!/6!*4! = 210 ways. Option E.
Regards,
Vivek
16 Sep 2019, 07:17
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We are to determine the number of 4 member committees that can be formed from 10 people. This is simple combination problem since order is not important here.
So Number of ways = 10C4 = 210.
Answer is E.
Posted from my mobile device
So Number of ways = 10C4 = 210.
Answer is E.
Posted from my mobile device
