Puzzle time in India !
Today was the last evening in Kalyani this trip. Like everyday, after dinner, we all went for a walk. “All” means the nephews, niece, my brother, sister, brother in law and of course myself. We, the adults, chat about a lot of things and I usually give the kids some math or logic puzzle to keep them busy.
Today started as an innocuous puzzle. But the adults joined in too. As a result, we amped up the difficulty of the puzzle. We have not been able to solve it fully. Maybe you can…
The puzzle is simple – using just the digits 1, 2 and 3 (each only once) derive all numbers from 0 to 25. You can use any of the following mathematical symbols any number of times : plus, minus, multiplied by, divided by, factorial, square root of, decimal point and parentheses (+ – * / ! Sqrt . and () ). For the programming types, ++ and — are not mathematical symbols.
E.g you can get 7 by 21/3 or 3*2+1 etc etc
We got everything other than 19 and 21. Still stuck.
Care to give it a try?
I am going to sleep now – will check tomorrow morning. Feel free to answer in Comments section.