Question
PSLE
A playground is 870 m from Sean’s house. Sean took 12 min to walk from his house to the playground and back again. What was his average walking speed? Give your answer in m/min.
1 m

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PSLE
A playground is 870 m from Sean’s house. Sean took 12 min to walk from his house to the playground and back again. What was his average walking speed? Give your answer in m/min.