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# I need help to understand this combination/permutation question

Author Message
Intern
Joined: 22 Mar 2017
Posts: 4
I need help to understand this combination/permutation question  [#permalink]

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30 Oct 2017, 06:32
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 2 sessions

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Can somebody explain why I have to multiply 3*20 and not add 1+20 and then times three in this question:

Amanda goes to the toy store to buy 1 ball and 3 different board games. If the toy store is stocked with 3 types of balls and 6 types of board games, how many different selections of the 4 items can Amanda make?

A. 9
B. 12
C. 14
D. 15
E. 60

--== Message from the GMAT Club Team ==--

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Math Expert
Joined: 02 Sep 2009
Posts: 49300
Re: I need help to understand this combination/permutation question  [#permalink]

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30 Oct 2017, 06:35
1
very_nice wrote:
Can somebody explain why I have to multiply 3*20 and not add 1+20 and then times three in this question:

Amanda goes to the toy store to buy 1 ball and 3 different board games. If the toy store is stocked with 3 types of balls and 6 types of board games, how many different selections of the 4 items can Amanda make?

A. 9
B. 12
C. 14
D. 15
E. 60

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________
Re: I need help to understand this combination/permutation question &nbs [#permalink] 30 Oct 2017, 06:35
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