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# If 2x(5n) = t, whatis the value of t?

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Math Expert
Joined: 02 Sep 2009
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If 2x(5n) = t, whatis the value of t? [#permalink]

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29 Jan 2014, 02:13
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82% (00:54) correct 18% (01:05) wrong based on 462 sessions

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The Official Guide For GMAT® Quantitative Review, 2ND Edition

If 2x(5n) = t, what is the value of t?

(1) x= n+ 3
(2) 2x = 32

Data Sufficiency
Question: 61
Category: Algebra First- and second-degree equations
Page: 157
Difficulty: 600

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Kudos [?]: 128527 [0], given: 12180

Math Expert
Joined: 02 Sep 2009
Posts: 41871

Kudos [?]: 128527 [2], given: 12180

Re: If 2x(5n) = t, whatis the value of t? [#permalink]

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29 Jan 2014, 02:13
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SOLUTION

If 2x(5n) = t, what is the value of t?

(1) x= n+ 3 --> 2(n+3)(5n) = t. Not sufficient.

(2) 2x = 32 --> x=16. Not sufficient.

(1)+(2) From (2) we have that x = 16, thus from (1): n = x - 3 = 13. We can find t. Sufficient.

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Kudos [?]: 128527 [2], given: 12180

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Re: If 2x(5n) = t, whatis the value of t? [#permalink]

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29 Jan 2014, 02:47
From question stimulus:10nx=t
From S1:x=n+3.Insufficient as we want absolute value of both n and x.
From S2:x=16.Insufficient as it doesn't provide value of n
Combining the 2 statements,we get x=16 and n=13.Hence,we can find out t.
Ans.C

Kudos [?]: 106 [0], given: 29

Math Expert
Joined: 02 Sep 2009
Posts: 41871

Kudos [?]: 128527 [0], given: 12180

Re: If 2x(5n) = t, whatis the value of t? [#permalink]

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01 Feb 2014, 09:41
SOLUTION

If 2x(5n) = t, what is the value of t?

(1) x= n+ 3 --> 2(n+3)(5n) = t. Not sufficient.

(2) 2x = 32 --> x=16. Not sufficient.

(1)+(2) From (2) we have that x = 16, thus from (1): n = x - 3 = 13. We can find t. Sufficient.

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Kudos [?]: 128527 [0], given: 12180

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Re: If 2x(5n) = t, whatis the value of t? [#permalink]

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18 Nov 2016, 17:34
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: If 2x(5n) = t, whatis the value of t?   [#permalink] 18 Nov 2016, 17:34
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