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 to ride back both ways?

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answer is B.

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Detailed Solution

Concept: Divide the time it takes a man to walk back and forth by two to calculate the time it takes to travel a distance in one direction. Set up an equation that correlates the time it takes a man to walk a distance and drive home. Solve this equation to find the time it takes a man to travel a distance. Multiply this time by 2 to calculate how long it takes a human to move in either direction.
We know that it takes a man 37 minutes to walk a certain distance and then return. The same man takes 55 minutes one way. You need to calculate how long it takes a man to move in both directions. We know that it takes 55 minutes for a man to walk in both directions, so divide this time by 2 to calculate how long it takes for a man to walk in one direction. Therefore, the time it takes a man to walk one way is

protocol. It has been found that it takes 37 minutes for a human to walk back one way and 27.5 minutes for a human to walk one way. To calculate how long it takes a man to travel a distance, subtract the time it takes for the man to walk the distance from the total time it takes for the man to walk and drive. Therefore, the time it takes for a man to travel one distance is equal to

protocol. To calculate how long it takes a man to move in both directions, double the time it takes for a man to move in one direction. Therefore, the time it takes for a man to move in both directions

Hence, the correct answer is option 2) 19

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