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# John buys R pounds of cheese to feed N people at a party. If N + P peo

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Math Expert
Joined: 02 Sep 2009
Posts: 55801
John buys R pounds of cheese to feed N people at a party. If N + P peo  [#permalink]

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07 Jan 2019, 04:44
00:00

Difficulty:

45% (medium)

Question Stats:

67% (02:08) correct 33% (01:34) wrong based on 21 sessions

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John buys R pounds of cheese to feed N people at a party. If N + P people come to the party, how many more pounds of cheese must John buy in order to feed everyone at the original rate?

A. NP/R

B. N/(RP)

C. (N + P)/R

D. P/(NR)

E. PR/N

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Joined: 18 Oct 2018
Posts: 83
Location: India
Concentration: Finance, International Business
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Re: John buys R pounds of cheese to feed N people at a party. If N + P peo  [#permalink]

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07 Jan 2019, 12:39
R pound of Cheese for N people.
This means R/N pounds of cheese for 1 person.

Now, additional people= N+P-N=P
So, additional cheese required = P*R/N

Hence,E
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Re: John buys R pounds of cheese to feed N people at a party. If N + P peo  [#permalink]

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08 Jan 2019, 01:35
Bunuel wrote:
John buys R pounds of cheese to feed N people at a party. If N + P people come to the party, how many more pounds of cheese must John buy in order to feed everyone at the original rate?

A. NP/R

B. N/(RP)

C. (N + P)/R

D. P/(NR)

E. PR/N

total cheese available per person R/N
additional person ; P
so P * R/N cheese is required.

IMO E
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Re: John buys R pounds of cheese to feed N people at a party. If N + P peo   [#permalink] 08 Jan 2019, 01:35
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# John buys R pounds of cheese to feed N people at a party. If N + P peo

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