Mathematics, 11.02.2021 01:50 monet83

Luke can fill a small sandbox with sand in 4 minutes. However, his brother Drew, is taking sand out at the same time. If full, Drew can empty the sandbox in 6 minutes. How long will it take Luke to fill the sandbox if Drew is emptying it at the same time?

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Luke can fill a small sandbox with sand in 4 minutes. However, his brother Drew, is taking sand out...

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