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5(r + t)

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5(r + t) [#permalink] New post 25 Apr 2017, 02:52
Expert's post
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A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

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


Quantity A
Quantity B
5(r + t)
5r + t


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Re: 5(r + t) [#permalink] New post 03 Aug 2017, 15:22
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Expert's post
Carcass wrote:


Quantity A
Quantity B
5(r + t)
5r + t


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.


Let's use the strategy of matching operations

Given:
Quantity A: 5(r + t)
Quantity B: 5r + 5

Expand:
Quantity A: 5r + 5t
Quantity B: 5r + 5

Subtract 5r from both quantities to get:
Quantity A: 5t
Quantity B: 5

Divide both quantities by 5 to get:
Quantity A: t
Quantity B: 1

Since there's no way to tell whether t is less than, equal to, or greater than 1, the correct answer is D

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Re: 5(r + t)   [#permalink] 03 Aug 2017, 15:22
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