If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance traveled by him is-
A
50 km
B
56 km
C
70 km
D
80 km
Correct Answer: 50 km
Hints: ধরি, distance = x km x/10 = (x + 20)/14 14x = 10x + 200 4x = 200 x = 50 km