Asked by K

During a triathlon, Sharon swims 1/4 of the total route and cycles 3/5 of the remaining route. She runs the rest of the route. If she runs 3,600 meters, find the total distance if the route
Answered by Reiny
total distance ---- x m

(1/4)x + (3/5)(3/4)x + 3600 = x
multiply each term by 20 , the LCD
5x + 9x + 72000 = 20x
6x = 72000
x = 12000 m

looks like she did a 12 K triathlon