I walk a certain distance and ride back taking a total time of 37 minutes. I could walk both ways in 55 minutes. How long would it take me to ride both ways?
Select the correct option:
A) 12 mins
B) 10 mins
C) 19 mins
D) 15 mins
E) 20 mins
Let the distance be x km. Then,   ( Time taken to walk x km) + (time taken to ride x km) =37 min.   ( Time taken to walk 2x km ) + ( time taken to ride 2x km )= 74 min.   But, the time taken to walk 2x km = 55 min.   Time taken to ride 2x km = (74-55)= 
<gadget id="calculator">(74-55)</gadget>
<output>19</output>
19 min.   Ans: 19 mins
<result>C</result>
I walk a certain distance and ride back taking a total time of 37 minutes. I could walk both ways in 55 minutes. How long would it take me to ride both ways?