Question

A man walks 10 km, then travels a certain distance by train and then by bus as far as twice by the train. If the whole journey is of 70km, how far did he travel by train?​

Answer 1

The man traveled 20km by train.

Explanation:

If x is the distance he traveled by train, you can write this equation to represent the situation:

`10+x+2x=70`

Then, you can simply solve for x:

`10+3x=70\\3x=60\\x=20`

The man traveled 20km by train.

`10+(20)+2(20)=70\\10+20+40=70\\70=70`