Brain Teasers
Elevator Rides
Kevin and Smith are in charge of counting people who get on and off the lift. They take turns riding to the top floor and back down, counting as they go. After three such trips each morning noon and evening, there is an average taken.
The hotel manager wants to know the days average.
1.On Smith's noon trip there were 32 fewer people than in his morning count.
2.Kevin counted a total of 122 in the morning and noon counts, just one higher than his evening count, but 24 more than Smith's Evening count.
3.Kevin's morning count is the same as Smith's average.
4.Kevin's evening count was 37 more than Smith's morning count.
The hotel manager wants to know the days average.
1.On Smith's noon trip there were 32 fewer people than in his morning count.
2.Kevin counted a total of 122 in the morning and noon counts, just one higher than his evening count, but 24 more than Smith's Evening count.
3.Kevin's morning count is the same as Smith's average.
4.Kevin's evening count was 37 more than Smith's morning count.
Hint
Clue 2 gives most of the information needed to get started.Answer
Morning Noon Evening Total AveKevin 78 44 121 243 81
Smith 84 52 98 234 78
Hide Hint Show Hint Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments hidden to avoid spoilers.
Follow Braingle!