# A fidget day of a business man

**Algebra**Level 3

Every day, a man catches the train to go home from work. He catches the train from station A to station B, then walks 10 minutes to go home.

Today, when running, the train must stop at K station, located between A and B because of an accident ahead. He was down to the station K and caught a taxi for home.

Taxi took him 30 minutes to arrived at home. He looked at the clock and saw that today he was late 5 minutes than every day.

Q, How many kilometers of the distance from K station to home?

Details and Assumption:

- The distance from K to home longer 3 times than the distance of A - K.
- The train ran faster than taxi 2 times.
- The distance of A - B is 40 km.

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