Two Natural Numbers

29.07.2015 |

Episode #9 of the course “Challenging logic puzzles”

A teacher says: I’m thinking of two natural numbers greater than 1. Try to guess what they are.

The first student knows their product and the other one knows their sum.

First: I do not know the sum.

Second: I knew that. The sum is less than 14.

First: I knew that. However, now I know the numbers.

Second: And so do I.

What were the numbers?

View the solution


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