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Peter went upstream in a canoe at an average speed of 12 miles per hour. He returned by the same route at an average speed of 18 miles per hour. What was Peter's average speed for the round trip, in miles
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Peter went upstream in a canoe at an average speed of 12 miles per hour. He returned by the same route at an average speed of 18 miles per hour. What was Peter's average speed for the round trip, in miles per hour?

User Sid Thakur
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3 votes
15 because 12+18=30 and divided by 2 is 15.
User Dribbel
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1 vote
Miles per hour is 1
User Ovidiu
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