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Data Sufficiency Problem

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by Mr.Hollywood » Fri Mar 02, 2012 7:58 pm
A man went on a n miles trip. Its first 1/6 of the time was completed with a speed of r mile/hr. First 1/2 of the time was completed with a speed of 8 miles/hr. The first 1/3 of the time was completed with a speed of 12miles/hr. What is the man's average speed?

(1)n=20
(2)r=4

The Answer seems to be D
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Source: — Data Sufficiency |

by krusta80 » Sat Mar 03, 2012 1:28 am
Mr.Hollywood wrote:A man went on a n miles trip. Its first 1/6 of the time was completed with a speed of r mile/hr. First 1/2 of the time was completed with a speed of 8 miles/hr. The first 1/3 of the time was completed with a speed of 12miles/hr. What is the man's average speed?

(1)n=20
(2)r=4

The Answer seems to be D
I may be missing something, but can you please double check the wording of the problem?
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by kitg » Sat Mar 03, 2012 7:44 am
i second... the wording seems to be bit odd?
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