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

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Reggie spent 4 h 40 min to complete his Chemistry and History assignments. He spent 30 min more on his Chemistry assignment than his History assignment. How long did he take to complete his History assignment?