Messrs Butcher, Baker, Carpenter and Plumber are currently attending another convention. No-one is currently, nor ever has been in the same profession as their name and no-one has had the same profession twice. Alan is now a butcher, whereas Mr Brian Butcher used to be a baker. The person who is now a carpenter used to be a butcher. Charles has never been a baker, Mr Darren Carpenter has never been a butcher and Mr Baker is not now a carpenter. Can you determine their full names, along with their current and previous professions?
The temperatures were -6, -2, 2, 6, 10 °C.
Each day increased by a steady 4 degrees.
As the temperature rose steadily each day and the average was 2 degrees, we know the middle temperature was 2 degrees.
If we assume a daily increase of 1, the sequence would be 0, 1, 2, 3, 4. This doesn't work we require 2 negative temperatures.
If we assume a daily increase of 2, the sequence would be -2, 0, 2, 4, 6. This doesn't work we require 2 negative temperatures.
If we assume a daily increase of 3, the sequence would be -4, -1, 2, 5, 8. This doesn't work as the product is less than 500.
If we assume a daily increase of 4, the sequence would be -6, -2, 2, 6, 10. This matches all of the requirements.
If we assume a daily increase of 5, the sequence would be -8, -3, 2, 7, 12. This doesn't work as the product is more than 2000.
So the only possible answer is -6, -2, 2, 6, 10.