Question
Zeph spent 2 h 45 min to complete his Chinese and Physic assignments. He spent 35 min more on his Chinese assignment than his Physic assignment. How long did he take to complete his Physic assignment?
4 m

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Zeph spent 2 h 45 min to complete his Chinese and Physic assignments. He spent 35 min more on his Chinese assignment than his Physic assignment. How long did he take to complete his Physic assignment?