Mathematics, 28.12.2020 18:50 vanleervanleer
Tommy can lay a brick walkway by himself in 12 hours. Robert does the same job in 10 hours.
Working together, how long will it take them to lay the brick walkway?
PLEASE HELP I NEED ASAP.
Answers: 3
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Tommy can lay a brick walkway by himself in 12 hours. Robert does the same job in 10 hours.
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