Question
Usha started swimming at 09 00. Barbara started swimming 20 min later but stopped swimming 13 min earlier than Usha. Usha stopped swimming at 11 25. How long did Barbara swim? Give your answer in this format. (Eg 1 h 20 min)
2 m

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Usha started swimming at 09 00. Barbara started swimming 20 min later but stopped swimming 13 min earlier than Usha. Usha stopped swimming at 11 25. How long did Barbara swim? Give your answer in this format. (Eg 1 h 20 min)