Question

If sam can swin 10 laps in 20 minutes, what would be his expected time for 15 laps?

Answer 1

Asnwer: 30 minutes

Step-by-step explanation:

10 laps in 20 minutes is 1 lap every 2 minutes.

So we get this:

1 lap = 2 minutes

But we want 15 laps, so multiply both sides by 15 to get:

15 laps = 30 minutes