Respuesta :

Answer:

there will be 50 laps in 45 minutes.

Step-by-step explanation:

Laps in 18 minutes=20

Caculate laps for 1 minute:

Laps in 1 minute=20/18

Now ,calculate laps for 45 minutes:

Laps in 45 minutes=20/18 × 45

= 50

Note: if you have any question about it you can ask.Thanks