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## GMAT prep simple rate ques

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jkelk Just gettin' started!
Joined
12 Mar 2012
Posted:
24 messages
GMAT prep simple rate ques Wed Mar 14, 2012 10:53 am
Elapsed Time: 00:00
• Lap #[LAPCOUNT] ([LAPTIME])
Hi

Thanks,
J
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nitin_stmicro Just gettin' started!
Joined
14 Mar 2012
Posted:
4 messages
Wed Mar 14, 2012 11:00 am
relative distance built up in the 5 mins = speed difference X (5/60) hr.
which is equal to 16 x 5/60 = 4/3 miles.

the hiker's speed is 4 miles per hour

so time required would be 4/3 miles divided by 4 miles per hour = 1/3 hour or 20 minutes.

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