Question
Japheth spent 3 h 40 min to complete his Malay and English assignments. He spent 30 min more on his Malay assignment than his English assignment. How long did he take to complete his English assignment?
4 m

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Japheth spent 3 h 40 min to complete his Malay and English assignments. He spent 30 min more on his Malay assignment than his English assignment. How long did he take to complete his English assignment?