The distance between the 2 stations is 784 km. At the same time, 2 trains left to meet each other

| January 4, 2021 | education

The distance between the 2 stations is 784 km. At the same time, 2 trains left to meet each other, and they met after 8 hours. Find the speed of each train, if the speed is 1 – 10 km / h. more speed 2.

The distance between the two stations is 784 kilometers. The two trains met after 8 hours. To add the equation, you need to find the total speed of the trains, multiply it by 8 and equate to 784.
Let’s find the total train speed. To do this, we first express the speed of the first, as A, and the second, by condition, as A – 10.
Now you can add the equation:
(A + A – 10) * 8 = 784;
2A – 10 = 784: 8;
2A = 98 + 10;
2A = 108.
A = 54 (km / h) – the speed of the first train.
Then the speed of the second is (54 – 10) 44 km / h.
Answer: 54 km / h and 44 km / h.



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