Solve the problem.One conveyor belt can move 1000 boxes in 6 minutes. Another can move 1000 boxes in 8 minutes. If another conveyor belt is added and all three are used, the boxes are moved in 3 minutes. How long would it take the third conveyor belt alone to do the same job?

A. 1 min
B. 24 min
C.  min
D.  min


Answer: B

Mathematics

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