If a person walks at 14 km/h instead of 10 km/h, he would walk 20 km more. Find the actual distance walked by that person.
A
50 km
B
56 km
C
70 km
D
80 km
Correct Option:
A
Explanation
Let the walking time be t hours. Increasing speed from 10 km/h to 14 km/h produces 20 km extra in the same time: (14-10)t=20, giving t=5 hours. The actual distance at 10 km/h is 10×5=50 km.
