Cyclist rode from one city to another city. First day he rode 1/6th from all the distance and plus 50 km. On second day he rode 1/5th from all the road plus 15 km. And on the third day he rode 1/20 from all distance plus 70km. And the question is how long was the distance between two cities.
I have no idea where to begin . I think the distance should be x. But what comes next? Sorry for my bad English, as it is not my native language.
The Attempt at a Solution
I thought it should look like 1/6*x +50 + 1/5*x +15 +1/20 +70 = ???