You mean, as a result, each person spent 1.8 yuan, three people spent ***5.4 yuan, and it took 40 cents to ride.

***5.8 yuan, the remaining twenty cents?

Can you do it?

I'm dizzy!

Of course I have a car! It cost them 40 cents to hitch a ride, which is about 0. 13333 yuan, so they actually spent 1.933333 yuan each on buying a mobile phone, which adds up to just 2 yuan, no more, no less!

Is my answer satisfactory?