Question

a car moves with a seed of 40km/h for 15min and then with a speed of 60km/h for the next 15min the total distance coverd by the car is :

Answer 1

Speed for first 15 minutes = 40km/h

Now 15 minutes= 15/60 hours

Distance1 = Speed × Time = 40 × 15/60

= 10 km

Speed for last 15 minutes = 60km/h

Now 15 minutes= 15/60 hours

Distance2 = Speed × Time = 60 × 15/60

= 25 km

Now total distance covered = distance1 + distance2

= 10 km + 25 km

= 35 I'm  Answer) 35 km

Answer 2

15x40+15x60

=600+900

=1500 km