A passenger car left point A at a speed of 74 km / h. after she drove 148 km, a truck drove

| May 11, 2021 | education

A passenger car left point A at a speed of 74 km / h. after she drove 148 km, a truck drove out of point B to meet her at a speed of 50 km / h. How many hours did the passenger car travel before meeting the cargo car, if 768 km between points A and B?

1. We find out how many kilometers the passenger car had to travel to point B, if it had already traveled 148 kilometers, and the distance between points A and B was 768 kilometers:

768 – 148 = 620 (km).

2. Determine the speed at which a passenger car and a truck are approaching each other:

74 + 50 = 124 (km / h).

3. Find how long it will take for a car and a truck to meet after the truck leaves:

620: 124 = 5 (h).

4. Find out how many hours the car was driving before the truck left:

148: 74 = 2 (h).

5. Determine how many hours a passenger car drove before meeting the truck:

5 + 2 = 7 (h).



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