Question

Sanfords gym coach made him run 10 laps on a 400 m track. how many kilometers did he run

Answer 1

Since each lap is 400m long, multiply the number of laps by 400m. Therefore, Sandford ran

`10\cdot400=4000`

4000 meters, and 1 kilometer is equal to 1000 meters; thus, 4 kilometers is equivalent to 4000 meters. Therefore, the answer is 4km