Solution: the total distance divided by the speed of 45 meters per minute plus 5 minutes is the time to go to school. Similarly, the total distance divided by the speed of 55 meters per minute MINUS 3 minutes is also the time to go to school.

The distance from the school is x meters.

X/45-5=X/55+3

X = 1980

Arithmetic solution: (5+3)/(1/45-1/55) =1980 (m)