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# Need help with this question!

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Intern
Joined: 13 Aug 2017
Posts: 21
Need help with this question!   [#permalink]

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22 Aug 2017, 14:43
The difference between John's and Paul's heights is twice the difference between John's and Thom's heights. If John is the tallest, what is the average (arithmetic mean) height of the three?

1) Paul is 163 centimeters tall
2) Thom is 173 centimeters tall

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Director
Joined: 17 Dec 2012
Posts: 630
Location: India
Re: Need help with this question!  [#permalink]

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22 Aug 2017, 15:52
1
AmritaA wrote:
The difference between John's and Paul's heights is twice the difference between John's and Thom's heights. If John is the tallest, what is the average (arithmetic mean) height of the three?

1) Paul is 163 centimeters tall
2) Thom is 173 centimeters tall

Sent from my ONE A2003 using GMAT Club Forum mobile app

Given: J-P=2(J-T) or J+P= 2T
Asked : (J+P+T)/3 =3T/3 = T

Statement 1: P=163 cm. Info not sufficient to determine what is asked
Statement 2: T=173. Sufficient

Hence B.

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: Need help with this question!   [#permalink] 22 Aug 2017, 15:52
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