Question
Marion started brisk walking at 08 00. Opal started brisk walking 13 min later but stopped brisk walking 19 min earlier than Marion. Marion stopped brisk walking at 10 10. How long did Opal brisk walk? Give your answer in this format. (Eg 1 h 20 min)
2 m

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Marion started brisk walking at 08 00. Opal started brisk walking 13 min later but stopped brisk walking 19 min earlier than Marion. Marion stopped brisk walking at 10 10. How long did Opal brisk walk? Give your answer in this format. (Eg 1 h 20 min)