Question

A man travels a total distance of 42 km in 5 hours. To cover this distance, he had walked part of the time at 3 kmph, and cycled for the rest at 12 kmph. How much distance did he cycle?
options
a. 35
b. 32
c. 39
d. 36

Answer 1

Answer:

d. 36

Step-by-step explanation:

Let the distance that he cycled be x.

∴ the distance he walked is 42-x.

Time taken to cycle = distance/speed = x/12

Time taken to walk = (42-x)/3

Total time taken = 5 h

∴ x/12 + (42-x)/3 = 5  

x = 36

So he cycled for 36 km