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To apply for the position of photographer at a local magazine, Veronic
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15 Oct 2021, 04:49
15 Oct 2021, 04:49
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To apply for the position of photographer at a local magazine, Veronica needs to include three or four of her pictures in an envelope accompanying her application. If she has pre-selected five photos representative of her work, how many choices does she have to provide the photos for the magazine?
(A) 5
(B) 10
(C) 12
(D) 15
(E) 50
(A) 5
(B) 10
(C) 12
(D) 15
(E) 50
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Re: To apply for the position of photographer at a local magazine, Veronic
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15 Oct 2021, 05:16
15 Oct 2021, 05:16
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Carcass wrote:
To apply for the position of photographer at a local magazine, Veronica needs to include three or four of her pictures in an envelope accompanying her application. If she has pre-selected five photos representative of her work, how many choices does she have to provide the photos for the magazine?
(A) 5
(B) 10
(C) 12
(D) 15
(E) 50
(A) 5
(B) 10
(C) 12
(D) 15
(E) 50
Since the order in which we select the pictures does not matter, we can use combinations.
We must consider two possible cases:
1) Veronica includes 3 of her pictures
We can select 3 pictures from 5 pictures in 5C3 ways
5C3 = 10
2) Veronica includes 4 of her pictures
We can select 4 pictures from 5 pictures in 5C4 ways
5C4 = 5
ASIDE: Below, there's a video that shows you how to quickly calculate combinations (like 5C3) in your head
Total number of possibilities = 10 + 5
= 15
= D
Cheers,
Brent
RELATED VIDEO
Re: To apply for the position of photographer at a local magazine, Veronic
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21 Jun 2024, 08:23
21 Jun 2024, 08:23
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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