5th Class
Mental Ability
Numbers
Question Bank
Numbers
question_answer
A bus carrying 16 persons was boarded by 3 persons at the first stop. At the second bus stop 12 persons got down and 5 boarded. If 4 persons got down at the 4th and the last stop, how many persons got down at the 3rd stop? (Assume that nobody boarded the bus after the second stop.)