Mathematics, 13.11.2020 17:10 hdjehd

Ann can ice a cupcake in 30 seconds. Sarah can ice a cupcake in 40 seconds. Working together, how many seconds will it take them to ice all 35 cupcakes?

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Ann can ice a cupcake in 30 seconds. Sarah can ice a cupcake in 40 seconds. Working together, how ma...

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