SOLUTION: If 3 bulldozers can load 5 trucks full of earth in 30 minutes, then how long should it take 5
bulldozers to load 7 trucks full of earth? Assume that all the bulldozers work equall
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Question 931424: If 3 bulldozers can load 5 trucks full of earth in 30 minutes, then how long should it take 5
bulldozers to load 7 trucks full of earth? Assume that all the bulldozers work equally hard and
all truck loads are the same size. Solve the problem, explaining your reasoning.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
If 3 bulldozers can load 5 trucks full of earth in 30 minutes,
Find how many bulldozer minutes per truck
3 * 30 = 5
90/5 = 18 bulldozer minutes per truck
:
then how long should it take 5 bulldozers to load 7 trucks full of earth?
let m = no. minutes to accomplish this
5m = 7*18
5m = 126
m = 126/5
m = 25.2 minutes for 5 dozers to load 7 trucks
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