Question

a car moves with a speed of 40 km per hour for 15 minutes and then with the speed of 60 km per hour for the next 15 minutes find the total distance covered by the car

Answer 1

1) speed=v=40km/h
time=t=15minute=15/60h
distance=?
v =d/t
v×t = d
40×15/60 =d
10 km =d

2) speed=v=60km/h
time=t=15minute=15/60 h
distance=d=?
v×t=d
60×15/60=d
15km=d


total distance
=10km+15km
=25km

Answer 2

Here us your answer

1.Distance=Time×Speed
I hour=60 min
15 min = 15/60 h
Distance=40×15/60= 10 km

2.Distance=60×15/60= 15 km

Total distance= 10km+15km=25km

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