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Re: If 15 people contributed a total of $20.00 toward a gift and each of [#permalink]
Expert Reply
Hi All,

This is an example of a 'limit' question (wherein the question asks for a minimum or maximum value based on a series of restrictions).

Here, we're told that 15 people must each contribute AT LEAST $1 to a total of $20. We're asked for the MAXIMUM that could be contributed by any one person.

To start, we need to minimize 14 people so that the 15th person can be 'maximized.' The minimal amount for each person is $1, so those 14 people would have to contribute 14($1) = $14 at the minimum. Assuming that only the minimum was contributed, the 15th person would contribute all of the remaining money:

$20 - $14 = $6

Final Answer:

GMAT assassins aren't born, they're made,
Rich

Originally posted by EMPOWERgmatRichC on 25 Nov 2015, 00:45.
Last edited by EMPOWERgmatRichC on 14 Mar 2018, 19:14, edited 1 time in total.
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Re: If 15 people contributed a total of $20.00 toward a gift and each of [#permalink]
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Bunuel wrote:
If 15 people contributed a total of $20.00 toward a gift and each of them contributed at least $1.00, then the maximum possible amount any one person could have contributed is

(A) $1.00
(B) $1.25
(C) $5.00
(D) $6.00
(E) $20.00


If 14 people contributed 1 dollar, then the remaining person would have had to contribute 6 dollars.

Answer: D
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Re: If 15 people contributed a total of $20.00 toward a gift and each of [#permalink]
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Re: If 15 people contributed a total of $20.00 toward a gift and each of [#permalink]
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