Of the two. cities drove out towards two cars and met in 4 hours.
| April 25, 2021 | education
Of the two. cities drove out towards two cars and met in 4 hours. Find the distance between cities if the speed of the first car is 120 km / h and the speed of the second car is half.
1) What is the speed of the second car if the speed of the first car was 120 km / h, and the speed of the second car is half that?
120: 2 = 60 (km / h).
2) What is the speed of convergence of two cars, if it is known from the condition of the problem that the cars left at the same time towards each other from two different cities?
120 + 60 = 180 (km / h).
3) What is the distance between cities if the cars meet in 4 hours?
180 ∙ 4 = 720 (km).
Answer: the distance between cities is 720 kilometers.
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