# SOLUTION: Harry walked to the town at a speed of 4 miles/hr, and came back by bicycle at a speed of 12 miles/hr. The total time for to and fro journey was 5/2 hrs. Find the time taken by him

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 Question 362534: Harry walked to the town at a speed of 4 miles/hr, and came back by bicycle at a speed of 12 miles/hr. The total time for to and fro journey was 5/2 hrs. Find the time taken by him to travel foot.Answer by stanbon(57967)   (Show Source): You can put this solution on YOUR website!Harry walked to the town at a speed of 4 miles/hr, and came back by bicycle at a speed of 12 miles/hr. The total time for to and fro journey was 5/2 hrs. Find the time taken by him to travel foot. ---- Walk DATA: rate = 4 mph ; distance = x miles ; time = x/4 hrs ------------ Bike DATA: rate = 12 mph ; distance = x miles; time = 1/12 hrs ----------------------- Equation: time + time = 5/2 x/4 + x/12 = 5/2 --- 3x + x = 30 4x = 30 x = 7.5 miles ( ----- Walk time = x/4 = (7.5/4)(60 min) = 112.5 min = 1 hr 52.5 min ================== Cheers, Stan H.