Question
Mary left a supermarket at 17 50 after spending her time there for 4 h 15 min. What time did she arrive at the supermarket? Give your answer in 24-hour clock.
2 m

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Mary left a supermarket at 17 50 after spending her time there for 4 h 15 min. What time did she arrive at the supermarket? Give your answer in 24-hour clock.