Question
Simon spent 4 h 30 min to complete his Japanese and Malay assignments. He spent 40 min more on his Japanese assignment than his Malay assignment. How long did he take to complete his Malay assignment?
4 m

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Simon spent 4 h 30 min to complete his Japanese and Malay assignments. He spent 40 min more on his Japanese assignment than his Malay assignment. How long did he take to complete his Malay assignment?