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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distance-time
Source: Beat The GMAT — Problem Solving |
Cyclist = 20m/hr or 20/60 miles/minutesudhir3127 wrote:can u please explain the answer
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.
















