Reconstruct a question, answer pair from this explanation: Required time = (6)/3 + (6)/6 = 3 hours.
Q:A man walks at a speed of 3 km/hr and runs at a speed of 6 km/hr. How much time will the man require to cover a distance of 12 km, if he completes half of the distance, i.e., (6) km on foot and the other half by running?
Options:
(A) 2.6
(B) 2.2
(C) 2.5
(D) 2
(E) 3
A:(E)