Question 53
Alberto and Barbara are going up with a chairlift. Alberto occupies seat no. 48 and Barbara seat no. 180. The moment Alberto crosses seat no. 75 Barbara crosses seat no. 169. How many seats are there on the chairlift?
Assume that the seats are equally spaced and proceed in ascending order from 1 to $N$, where $N$ is the total number of seats. In particular, after seat number $N$ there is seat number 1.
Assume that the seats are equally spaced and proceed in ascending order from 1 to $N$, where $N$ is the total number of seats. In particular, after seat number $N$ there is seat number 1.