I walk a certain distance and ride the car back taking a total time of 33 minutes. I could walk both sides in 45 min. How long would it take me to ride both ways?
Time taken in walking a certain distance
from X and Y = 22 1/2 min
Time taken in riding the same distance
= 33 - 22 1/2 = 10 1/2 min
It will take 21 min to ride both ways.
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