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Is it true that a > b?

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Source: — Data Sufficiency |

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by Brent@GMATPrepNow » Sun Jun 30, 2019 9:19 am

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Gmat_mission wrote:Is it true that a > b?

(1) 2a > 2b
(2) a + c > b + c
Target question: Is a > b?

Statement 1: 2a > 2b
Divide both sides by 2 to get: a > b
The answer to the target question is YES, a IS greater than b
Since we can answer the target question with certainty, statement 1 is SUFFICIENT

Statement 2: a + c > b + c
Subtract b from both to get: a > b
The answer to the target question is YES, a IS greater than b
Since we can answer the target question with certainty, statement 2 is SUFFICIENT

Answer: D

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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