Question

A man travels from Town X to Town Y at an average rate of 60 mph and returns at an average rate of 50 mph. He takes a 1/2 hour longer than he would take if he made the round trip at an average of 55 mph. What is the distance from Town X to Town Y

Answer 1

150 miles

Explanation:

Answer 2

60t=d and 50(t+.5)=d since d=d

60t=50(t+.5)

60t=50t+25

10t=25

t=2.5 hr...now using 60t=d we can say:

d=60(2.5)

d=150 miles