Question

One lap of a running track measures 255 m. To run 10.0 km, how many laps should you run?

Answer 1

`(10,000m)/(255m) = 39.22` laps is exactly 10 Km.

If complete laps are to be run, 40 laps are needed..

Explanation:

We need to divide 10.0km by 255m to find out how many times 255m can 'fit into' 10km.

The units are different. They need to be same before we can divide.

Either use: `10.0km xx1000 = 10,000m`

OR: `" 255m "div 1000 = 0.255Km`

`(10,000)/255 = 39.22 rArr 40` laps.

If complete laps have to be run, 40 laps will be 10 Km.