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Bunuel
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A chef has lamb, carrots, potatoes, celery, and peppers. From these 27 Feb 2019, 23:13
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D
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Question Stats:

75% (01:05) correct 25% (01:14) wrong based on 161 sessions

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A chef has lamb, carrots, potatoes, celery, and peppers. From these, she chooses three different ingredients for a stew. She willserve the stew with bread, salad, or dumplings. How many different meals could the chef serve?

A. 10
B. 15
C. 20
D. 30
E. 60
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D
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BrentGMATPrepNow
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A chef has lamb, carrots, potatoes, celery, and peppers. From these 29 Aug 2021, 08:37
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Bunuel
A chef has lamb, carrots, potatoes, celery, and peppers. From these, she chooses three different ingredients for a stew. She will serve the stew with bread, salad, or dumplings. How many different meals could the chef serve?

A. 10
B. 15
C. 20
D. 30
E. 60
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Take the task of creating a meal and break it into stages.

Stage 1: Select 3 different ingredients for the stew
Since the order in which we select the 3 different ingredients does not matter, we can use combinations.
We can select 3 ingredients from 5 ingredients in 5C3 ways (10 ways)
So, we can complete stage 1 in 10 ways
Aside: The 2nd video below has tips on calculating combinations like 5C3 in your head

Stage 2: Select a side dish (bread, salad, or dumplings) for the stew
There are 3 options for the side dish, we can complete stage 2 in 3 ways

By the Fundamental Counting Principle (FCP), we can complete the 2 stages (and thus create a mean) in (10)(3) ways (= 30 ways)

Answer: D

Note: the FCP can be used to solve the MAJORITY of counting questions on the GMAT. So, be sure to learn it.

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A chef has lamb, carrots, potatoes, celery, and peppers. From these 28 Feb 2019, 03:40
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Bunuel
A chef has lamb, carrots, potatoes, celery, and peppers. From these, she chooses three different ingredients for a stew. She willserve the stew with bread, salad, or dumplings. How many different meals could the chef serve?

A. 10
B. 15
C. 20
D. 30
E. 60
Show more

for dishes = 5c3
and other three optipns 3c1

5c3*3c1 = 30
IMO D
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A chef has lamb, carrots, potatoes, celery, and peppers. From these 27 Mar 2023, 03:24
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