One bulldozer clears the land twice as fast as another. Together they clear a large tract in 1 2/1 hours. how long would the larger bulldozer take. please tell me how you got it
its must be 1 1/2 hours, not 1 2/1 hours, rite? when the larger bulldozer take t hours, the smaller one take 2t hours. t + 2t = 1 1/2 hours 3t = 1 1/2 hours t = 1/2 hours
the faster one takes 12 a hour and the other one takes 1 hour........i guess
You first simplify the hours to 3 and the larger dozer takes 1 hours while the other finishes in 2 which is 2x as fast
