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IMAS 2012 — Middle Primary Grades 3–4 — Round 2 Question 7

IMAS · IMAS 2012 — Middle Primary Grades 3–4 — Round 2

Question 7

The distance between Mark’s home and the park is 3000 m. Mark walked from his home to the park at a speed of 100 m per minute and then walked back home at a speed of 150 m per minute. What is Mark’s average speed in meter per minute?