Question

a car moves with a speed of 40 km / hour for 15 minutes and then with a speed of 60 km /hour for next 15 minutes what is the total distance covered by the car​

Answer 1

Answer:

25 km

Explanation:

Speed 1, s = 40 km/h

Time 1, t = 15 min = 15/60 = 1/4 hrs

So, distance 1, d = s*t = 40 * 1/4 = 10 km

Now,

Speed 2, S = 60 km/h

Time 2, T = 15 min = 15/60 = 1/4 hrs

So, distance 2, D = S*T = 60 * 1/4 = 15 km

So,

Total distance traveled by the car is d + D = 10 + 15 = 25 km