A man takes 50 minutes to cover a certain distance at the speed if 6km/hr.if he walks with a speed of 10 km/hr he covers same distance in:
A. 60 min
B. 30 min
C. 20 min
D. 10 min
A man takes 50 minutes to cover a certain distance at the speed if 6km/hr.if he walks with a speed of 10 km/hr he covers same distance in:
A. 60 min
B. 30 min
C. 20 min
D. 10 min