Working alone, Jack can do a puzzle in 5 hours. With his brother's help, the two can do the same puzzle in 2 hours. How long would it take Jack's brother to do the puzzle alone?

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asked Apr 15, 2021 18.5k views

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Working alone, Jack can do a puzzle in 5 hours. With his brother's help, the two can do the same puzzle in 2 hours. How long would it take Jack's brother to do the puzzle alone?

Mathematics
college

Dorkmania asked

by Dorkmania

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1 Answer

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Answer:

3 hours and 20 minutes

Explanation:

(I'm so sorry I forgot the work)

Silhouette Hustler answered Apr 18, 2021

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