Question 373781
During a trip to Valdosta from Alabama, a couple went one third of the way by car, 40 miles by bicycle and one sixth of the journey on foot. How long was the trip?

Sol'n:
 let x - the total distance travel
 x/3 + 40 + x/6 = x
 x (1-1/3-1/6) = 40
 0.5x = 40
  x = 40/0.5)
  x = 80 miles----answer