Gallery Problems Exercise

Laps, Miles, Kilometers

Work Time

Laps, Miles, and Kilometers

A runner can measure her progress in terms of laps, miles, or kilometers.

A sign is posted at a track that gives the distances in miles and in kilometers for one-half of a lap.

12 lap = 18 miles, or 0.2 km

Rosa ran 14 laps.

Emma ran 5 km.

Mina ran 3 mi.

  1. Who ran the longest distance? Justify your answer mathematically.
  2. Who ran the shortest distance? Justify your answer mathematically.