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If x and y are integers and their sum is 23, is y ≥ 9? (1

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If x and y are integers and their sum is 23, is y ≥ 9? (1

by GMATinsight » Thu Oct 08, 2015 1:40 am
If x and y are integers and their sum is 23, is y ≥ 9?

(1) x - 6 < 9
(2) x^3 = 2,744

Answer: option D
Last edited by GMATinsight on Thu Oct 08, 2015 5:16 am, edited 1 time in total.
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by GMATinsight » Thu Oct 08, 2015 5:15 am
GMATinsight wrote:If x and y are integers and their sum is 23, is y ≥ 9?

(1) x - 6 < 9
(2) x^3 = 2,744

Answer: option D
Given : x+y = 23

Question : Is y ≥ 9?
i.e. Question : Is x < 23-9 i.e. Is x < 14?

Statement 1: x - 6 < 9
i.e. x < 9+6
i.e. x < 15
i.e. x < 14. Hence,
SUFFICIENT

Statement 2: x^3 = 2,744
i.e. we have certain value of x which will render a certain value of y. Hence,
SUFFICIENT

Answer: option D
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