Question
Dana started canoeing at 09 00. Xuan started canoeing 10 min later but stopped canoeing 20 min earlier than Dana. Dana stopped canoeing at 11 15. How long did Xuan canoe? Give your answer in this format. (Eg 1 h 20 min)
2 m

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Dana started canoeing at 09 00. Xuan started canoeing 10 min later but stopped canoeing 20 min earlier than Dana. Dana stopped canoeing at 11 15. How long did Xuan canoe? Give your answer in this format. (Eg 1 h 20 min)