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Did Leslie ever fly faster than 200 miles per hour?

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by himu » Mon Apr 08, 2013 7:20 am
While Leslie was flying his airplane from Hartfield to Weatherford, did he ever fly faster than 200 miles per hour?

The distance from Hartfield to Weatherford is 470 miles
The flight from Hartfield to Weatherford took Leslie exactly 2 hours
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Source: — Data Sufficiency |
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by himu » Mon Apr 08, 2013 7:21 am
[spoiler]OA = C.
I do not agree, IMO = E.
Pls correct me if I am wrong, also request u to post the explanation.
Cheers,
~Himu.[/spoiler]
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by Anju@Gurome » Mon Apr 08, 2013 7:30 am
himu wrote:While Leslie was flying his airplane from Hartfield to Weatherford, did he ever fly faster than 200 miles per hour?

The distance from Hartfield to Weatherford is 470 miles
The flight from Hartfield to Weatherford took Leslie exactly 2 hours
Clearly none of the statements are individually sufficient.

1 and 2 Together: Leslie covered 470 miles in 2 hours.
Hence, his average speed was 470/2 = 235 miles per hour.
This means at some point his speed was more than 235 miles per hour or his speed was 235 miles per hour throughout the journey.

Sufficient

The correct answer is C.
Anju Agarwal
Quant Expert, Gurome

Backup Methods : General guide on plugging, estimation etc.
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