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Kendra is more than 5 years old.

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GMAT Club Legend
GMAT Club Legend
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Joined: 07 Jun 2014
Posts: 4722
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
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Kudos [?]: 1630 [0], given: 390

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Kendra is more than 5 years old. [#permalink] New post 27 May 2018, 12:14
Expert's post
00:00

Question Stats:

83% (00:57) correct 16% (00:27) wrong based on 6 sessions
Kendra is more than 5 years old.
Quantity A
Quantity B
Five years less than twice Kendra’s age
Twice what Kendra’s age was five years ago


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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Sandy
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GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jun 2014
Posts: 4722
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1630 [0], given: 390

CAT Tests
Re: Kendra is more than 5 years old. [#permalink] New post 27 May 2018, 12:48
Expert's post
Explanation

This is an algebraic translation, meaning you need to translate the text into algebra. Use k to represent Kendra’s age, and the problem states that k > 5 (this is important only because Quantity B requires you to consider Kendra’s age five years ago, and if she were younger than 5 years old, that would create an impossible negative age!).

Quantity A = 2k – 5

Quantity B = 2(k – 5) = 2k – 10

Since 2k is common to both quantities it can be subtracted from both without affecting their relative values.

Quantity A = –5 Quantity B = –10

Quantity A is less negative, so it is greater.
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Sandy
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Intern
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Joined: 26 May 2018
Posts: 31
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Kudos [?]: 5 [0], given: 2

Re: Kendra is more than 5 years old. [#permalink] New post 27 May 2018, 12:51
Eliminating technique is quite good.
Thanks.
Re: Kendra is more than 5 years old.   [#permalink] 27 May 2018, 12:51
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Kendra is more than 5 years old.

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