Question
Ethan spent 3 h 50 min to complete his Literature and Biology assignments. He spent 40 min more on his Literature assignment than his Biology assignment. How long did he take to complete his Biology assignment?
4 m

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Ethan spent 3 h 50 min to complete his Literature and Biology assignments. He spent 40 min more on his Literature assignment than his Biology assignment. How long did he take to complete his Biology assignment?