Question

UU i aller 5 hours.
4. A car moves with a speed of 40 km/h for 15 minutes and then with a speed of
60 km/h for the next 15 minutes. Find the total distance covered by the car in
these 30 minutes.​

Answer 1

Explanation:

speed 1 = 40 km/hr

time 1 = 15 min = 1/4 hrs

distance 1 = 40 x 1/4 = 10 km

speed 2 = 60 km/hr

time 2 = 15 min = 1/4 hrs

distance 2 = 60 x 1/4 = 15 km

total distance = 10 + 15 = 25 km