A double-decker bus has 13 passengers. At the first stop, 4 people got off and 6 people got on. At the

Question

second stop, 1 person got off and 5 people got on. At the third stop, 15 people got off and no one got
on. How many people are still on the bus?

Answer 1

A double-decker bus has 13 passengers. At the first stop, 4 people got off and 6 people got on. At the
second stop, 1 person got off and 5 people got on. At the third stop, 15 people got off and no one got
on. How many people are still on the bus?

Answer 2

4?