Question

John runs at a rate of 12 laps in 8 minutes while Sam runs a rate of 24 laps in 18 minutes

what is the unit rate for john.
what is the unite rate for Sam.
who runs faster? explain

Answer 1

Johns rate is 1.5 laps per 1 minute. Sams rate is 1.3 laps per 1 minute.

The easiest way to find the information above, is to take 12 and divide it by 8. That gives you 1.5 laps per minute for John. Do the same for Sam, just with the different numbers.
The person that runs the fastest is John. John runs 1 and a half laps per minute, vs. Sam that runs 1 and a third laps per minute.