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Sub 505 Level|   Word Problems|                     
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Bunuel
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Bunuel
The Official Guide For GMAT® Quantitative Review, 2ND Edition

How many newspapers were sold at a certain newsstand today?

(1) A total of 100 newspapers were sold at the newsstand yesterday, 10 fewer than twice the number sold today.
(2) The number of newspapers sold at the newsstand yesterday was 45 more than the number sold today.


Statement 1) 100 = 2todays -10 => Todays we can determine. Sufficient.
Statement 2) We need to have the value of newspaper sold yesterday to determine today's. Not Sufficient.

Hence Option A)
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t = ?

AD/BCE
Statement I:

y =100
2t-10 = 100
2t = 100-10
t=90/2 = 45

AD/BCE

Statement II:

y = 45 + t
t = ? unknown.
Cannot resolve two variable in one equation.
Not Sufficient

AD/BDE

Hence A is correct answer.
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Hello from the GMAT Club BumpBot!

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