Salma takes 15 min from her house to reach her school on a bicycle. If the bicycle has 2m/s. Calculate the distance between her school and her house.

Distance covered by the car in 1st 15mins :

speed=40km/h

time=15mins

=1/60*15

=1/4h

distance=speed*time

=40*1/4

=10km

Distance covered by the car in 2nd 15mins:

speed=60km/h

time=15mins

=1/60*15

=1/4h

distance=speed*time

=60*1/4

=15km

Total distance covered = 10km +15km

=25km

So, the total distance covered by the car is 25km.