Question
Usha started swimming at 07 00. Opal started swimming 8 min later but stopped swimming 20 min earlier than Usha. Usha stopped swimming at 08 05. How long did Opal swim? Give your answer in this format. (Eg 1 h 20 min)
2 m

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Usha started swimming at 07 00. Opal started swimming 8 min later but stopped swimming 20 min earlier than Usha. Usha stopped swimming at 08 05. How long did Opal swim? Give your answer in this format. (Eg 1 h 20 min)