A truck travels the distance between cities in 20 hours, and a passenger car – in 10 hours.
| May 3, 2021 | education
A truck travels the distance between cities in 20 hours, and a passenger car – in 10 hours. In how many hours will they meet if cars leave these cities at the same time towards each other?
We will solve this problem by actions.
1. Let’s determine what part of the distance between cities a truck travels in an hour.
1/20 part.
2. Let us determine what part of the distance between cities a passenger car travels in an hour.
1/10 part.
3. Let’s find what part of the distance between cities a truck and a car travel together in an hour, moving towards each other.
1/20 + 1/10 = 3/20.
4. Find out how many hours they will meet.
1: 3/20 = 20/3 = 6 2/3.
Answer: A truck and a car will meet in 6 2/3 hours.
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