GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
How many committees of 5 members can be chosen from a group
[#permalink]
24 Nov 2017, 20:45
24 Nov 2017, 20:45
Expert Reply
00:00
Question Stats:
79% (00:28) correct
20% (00:46) wrong based on 39 sessions
Hide Show timer Statistics
How many committees of 5 members can be chosen from a group of 8 people?
A. 28
B. 56
C. 118
D. 336
E. 6,720
A. 28
B. 56
C. 118
D. 336
E. 6,720
Drill 1
Question: 10
Page: 523
Question: 10
Page: 523
Re: How many committees of 5 members can be chosen from a group
[#permalink]
02 Dec 2017, 10:34
02 Dec 2017, 10:34
2
sandy wrote:
How many committees of 5 members can be chosen from a group of 8 people?
A. 28
B. 56
C. 118
D. 336
E. 6,720
A. 28
B. 56
C. 118
D. 336
E. 6,720
Drill 1
Question: 10
Page: 523
Question: 10
Page: 523
We can use combination ie 8C5 = 56
Re: How many committees of 5 members can be chosen from a group
[#permalink]
10 Dec 2017, 17:12
10 Dec 2017, 17:12
Expert Reply
Explanation
This is the number of combinations of 8 items taken 5 at a time (because the order does not matter). This number is equal to \(\frac{8}{5}\times\frac{7}{4}\times\frac{6}{3}\times\frac{5}{2}\times\frac{4}{1}=8\times7=56\).
Hence option B is correct!
This is the number of combinations of 8 items taken 5 at a time (because the order does not matter). This number is equal to \(\frac{8}{5}\times\frac{7}{4}\times\frac{6}{3}\times\frac{5}{2}\times\frac{4}{1}=8\times7=56\).
Hence option B is correct!
