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Statement 1 --> \(120 < \frac{3}{4}*4^x\) ==> \(160 < 4^x\) ==> therefore, x > 3 ==> Insufficient. Statement 2 --> \(x = +5 or -5\) ==> therefore, 3x is either +15 or -15 in both cases its less than 500 ==> Sufficient.

Re: If x is an integer, is 3^x less than 500? [#permalink]

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27 Jan 2014, 14:18

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Re: If x is an integer, is 3^x less than 500? [#permalink]

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28 May 2014, 06:07

1

This post received KUDOS

From statement 1 we get that x>=4 hence if x=4 the answer is yes, but if x10 the answer is NO. From statement 2 we get that x can be either -6 or 6, if x=6 then yes but if x = -6 then no. From both statements together we know that x = 6 so the answer is NO C

C is the answer to problems

Cheers J

gmatclubot

Re: If x is an integer, is 3^x less than 500?
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28 May 2014, 06:07

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