Brain Teasers
Untrue Ages
Boris Downhillski and Mad Ade have a conversation.
Boris says: "I am certainly not over 40."
Mad Ade says: "I am 38 and you are at least 5 years older than me."
Now Boris says: "You are at least 39."
All the statements by the two are false. How old are they really?
Boris says: "I am certainly not over 40."
Mad Ade says: "I am 38 and you are at least 5 years older than me."
Now Boris says: "You are at least 39."
All the statements by the two are false. How old are they really?
Answer
Boris is 41 and Mad Ade is 37.Seeing as they are both lying then the real conversation should really run like this:
Boris says: "I am certainly over 40."
Mad Ade says: "I am not 38 and you are at most 4 years older than me."
Now Boris says: "You are at most 38."
From first statement it is clear that Boris is over 40. Also, from next 2 statements it is clear that Mad Ade is less than 38. Hence the possibilities are :
Boris = 41, 42, 43, 44, 45, ......
Mad Ade = 37, 36, 35, 34, 33, ......
It also says that the difference between their age is maximum 4 years. Hence, there is only one possible pair i.e. 41 and 37, all other combination have differences more than 4.
Hence the answer - Boris is 41 and Mad Ade is 37.
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!