A man walks at a speed of 6 km/hr and runs at a speed of 7 km/hr. How much time will the man require to cover a distance of 10 1/2 km, if he completes half of the distance, i.e., (5 1/4) km on foot and the other half by running?  Pick one
A) 1 4/2 hours
B) 1 5/8 hours
C) 2 1/6 hours
D) 2 1/1 hours
E) 2 1/2 hours
Required time   = (5 1/4)/6 + (5 1/4)/7   = 1 5/8 hours.   Answer:1 5/8 hours
<result>B</result>
A man walks at a speed of 6 km/hr and runs at a speed of 7 km/hr. How much time will the man require to cover a distance of 10 1/2 km, if he completes half of the distance, i.e., (5 1/4) km on foot and the other half by running?