Question 972332
A woman goes up a hill at 1.5mph and comes down at 4.5mph it takes her 6 hours how far did she travel??
-------------
Avg speed of the round trip = 2*1.5*4.5/(1.5+4.5) = 13.5/6 = 2.25 mi/hr
RT distance = 2.25*6 = 13.5 miles