When Jose rode on a bus,he noticed some people sitting.At next bus stop,5 people got on and 2 people got off. Two stops later,7 people got on 15 people got off the bus at the terminal station. How many people were in the bus when Jose got on the bus?

Are you sure about your question? I don't know but I guess something's missing. I guess, there must be something that says that uhm..
uhm about the total number of people at the end of the day.. 'ya know... uhm.. 
really... Can you re-check your question?


12 because the question is how may people were in the bus when Jos got on the bus.So 5 added to 7 is 12.