A person starts walking at a speed of 5km/hr through half the distance, rest of the distance he
covers with aspeed 4km/hr. Total time of travel is 6 hours. What is the maximum distance he
can cover?  Choices
A) 20 km	B) 40 km	C) 60 km	D) 80 km	E) 26.6 km

Rationale: t = d / s , so 6 = x / 2 * 1 / 5 + x / 2 * 1 / 4 ( because half distance with 5 km / ph , and remaining half with 4 km / hr ) 6 = x ( 18 / 80 ) x = 26.6 km answer : e
Answer: E