Answer:
3 laps
Step-by-step explanation:
1 minute = 60 seconds.
4 minutes * 60 seconds/ 1 minute = ==> use seconds-minutes conversion
factor to solve for the number of
seconds in 4 minutes
4 * 60 seconds/1 = ==> cancel the minutes unit
4 * 60 seconds = 240 seconds in 4 minutes
Now solve for the number of meters completed in 240 seconds by using the meters-seconds conversion
240 seconds * 5 meters/1 second=
240 * 5 meters/1= ==> cancel the seconds unit
240*5 meters = 1200 meters
Now solve for the number of laps equivalent to 1200 meters by using the laps-meters conversion
1200 meters * 1 lap/400 meters =
1200 * 1 lap/400 = ==> cancel the meters unit
1200 laps/400 =
1200/400 laps = 3 laps