From points A and B, the distance between which two cars simultaneously drove towards each other 300 km.

From points A and B, the distance between which two cars simultaneously drove towards each other 300 km. The speed of the car leaving point A is 40 km / h. Determine the speed of the second car if it is known that after two hours the distance between them became 100 km.

1.Let’s find how many km both cars traveled in 2 hours:

300 – 100 = 200 (km).

2. Since the cars were moving in different directions, their speeds add up. Let’s designate the speed of the second car X. Then:

(40 + X) x 2 = 200;

2 x X + 80 = 200;

2 x X = 120;

X = 60 (km / h).

Answer: The speed of the second car is 60 km / h.