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Tough and tricky 7: average temperature

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Tough and tricky 7: average temperature [#permalink] New post   11 Oct 2009, 18:26
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75% (00:52) correct 25% (01:23) wrong based on 27 sessions
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The average of temperatures at noontime from Monday to Friday is 50; the lowest one is 45, what is the possible maximum range of the temperatures?

A. 20
B. 25
C. 40
D. 45
E. 75



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Re: Tough and tricky 7: average temperature [#permalink] New post   11 Oct 2009, 18:31
250-45*4=70.
Range = 70-45 = 25.
Answer B.
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Re: Tough and tricky 7: average temperature [#permalink] New post   11 Oct 2009, 22:45
To find the maximum range, keep all the temp as the minimum(45). Thus the maximum temp would be 70 and hence the max range would be 25.
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Re: Tough and tricky 7: average temperature [#permalink] New post   12 Oct 2009, 09:44
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Set of Tough & tricky questions is now combined in one thread: tough-tricky-set-of-problms-85211.html

You can continue discussions and see the solutions there.



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Re: Tough and tricky 7: average temperature [#permalink]
12 Oct 2009, 09:44
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