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The corner store sells yams and plantains by the pound. A

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sandy

Retired Moderator

Joined: 07 Jun 2014

Posts: 4805

GRE 1: Q167 V156

WE:Business Development (Energy and Utilities)

The corner store sells yams and plantains by the pound. A [#permalink]

27 May 2018, 12:24

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00:00

Question Stats:

67% (01:30) correct

32% (02:19) wrong

based on 59 sessions

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The corner store sells yams and plantains by the pound. A pound of plantains cost $0.30 less than twice the cost of a pound of yams.

Quantity A	Quantity B
The cost of two pounds of yams and two pounds of plantains	The cost of three pounds of plantains

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.

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sandy

Retired Moderator

Joined: 07 Jun 2014

Posts: 4805

GRE 1: Q167 V156

WE:Business Development (Energy and Utilities)

Re: The corner store sells yams and plantains by the pound. A [#permalink]

27 May 2018, 13:18

Expert Reply

Explanation

Represent the cost per pound of the vegetables by their first letters.
The given information translates to p = 2y – 0.30 because “twice” means multiply by two and “less” indicates subtraction. Then, translate the quantities into algebraic expressions:

Quantity A = 2y + 2p
Quantity B = 3p

Since 2p is common to both quantities, it can be subtracted without changing their relative values:

Quantity A = 2y
Quantity B = p

Since p = 2y – 0.30, Quantity B is 0.30 less than Quantity A.

Hence option A is correct!
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bumpbot

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Re: The corner store sells yams and plantains by the pound. A [#permalink]

05 Oct 2021, 09:09

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