The train traveled 3/7 of the entire journey to the stop. He still has 84 km to go. What is the length of the entire path?

univerkov | July 3, 2021 | education

To solve this problem, remember, in order to find the number by its part, expressed as a fraction, you need to divide this number by a fraction. The train passed 3/7 of the entire path, it remains to drive 84 km. Let’s calculate how many parts are left for the train to travel. To do this, subtract 3/7 from 1.
1-3 / 7 = 7 / 7-3 / 7 = 4/7.
We know that 4/7 of the entire path is 84 km. Let’s calculate the length of the entire path.
84: 4/7 = 84 * 7/4 = 147 km.
Answer: 147 km.

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