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by preetha_85 » Thu Jul 10, 2008 8:23 pm
Hi
U getting the answer as 25 since u did not consider the distance travelled by the hiker during the 5 mins travelled by the cyclist . If take tat into account then the ans is 20
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by ildude02 » Thu Jul 10, 2008 8:46 pm
Nice catch. I missed on it, and it's obvious that's what the the test prep guys are waiting on :)
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by sudhir3127 » Fri Jul 11, 2008 10:08 am
can u please explain the answer
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by parallel_chase » Fri Jul 11, 2008 1:07 pm
sudhir3127 wrote:can u please explain the answer
Cyclist = 20m/hr or 20/60 miles/minute

Hiker = 4m/hr or 4/60 miles/minute

In 5 minutes cyclist would have covered a distance of 5/3 miles.

Therefore,

Hiker would take 5/3 / 4/60 (Time = Distance/Rate) => 25 minues

Since,

Cyclist was already waiting for 5 minutes => 25-5 =>20 minutes

Let me know if you still have any doubts.
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