Two cars drove out simultaneously towards each other from two cities, the distance between which is 600 km, and met in 4 hours. Determine the speed of each car if one was moving faster than the other by 12 km / h.
1. Let’s calculate how many more kilometers a car has traveled, the speed of which is 12 kilometers per hour more.
12 * 4 = 48 kilometers.
2. Find out the distance that the cars have traveled equally.
600 – 48 = 552 kilometers.
3. Let us determine at what speed the first car drove per hour, if it is known that it was on the way for 4 hours.
552/2/4 = 69 kilometers.
4. Find out the speed of the second car if it is known that it traveled 48 kilometers more than the first car.
(552/2 + 48) / 4 = 81 kilometers.
Answer: The speed of the first car was 69 kilometers per hour, and the speed of the second car was 81 kilometers per hour.
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