Rahul travels from A to B a distance of 200 miles in 5 hours. He returns to A in 4 hours. Find his average speed?
Select:
A) 52.2 mph	B) 61.9 mph	C) 44.4 mph	D) 35.7 mph	E) 65.6 mph

Rationale: speed from a to b = 200 / 5 = 40 mph speed from b to a = 200 / 4 = 50 mph average speed = 2 * 40 * 50 / 90 = 44.4 mph answer is c
Answer: C