07-04-2021, 11:05 PM
Okay... a few days ago, I was sorting through some old stuff. And, one of the things I found was a keyring, that I received as a reward for participating in the 2005 Intermediate Mathematical Olympiad and Kangaroo (a maths competition aimed at British school students in Years 9 to 11).
Naturally, the keyring itself had a maths puzzle on it, which was as follows:
Each letter represents a distinct digit between 0 and 9 (and presumably, K and R aren't allowed to be 0, since they occur at the beginning of a number ). All you need to do is find out how many combinations of digits there are that satisfy that equation.
I've got a solution to this (not necessarily a correct solution !), but I'll wait a few days before posting it, to give other people a chance to come up with one (if anybody can, I might give away some CCs as a prize...)
So, any ideas?
Naturally, the keyring itself had a maths puzzle on it, which was as follows:
Each letter represents a distinct digit between 0 and 9 (and presumably, K and R aren't allowed to be 0, since they occur at the beginning of a number ). All you need to do is find out how many combinations of digits there are that satisfy that equation.
I've got a solution to this (not necessarily a correct solution !), but I'll wait a few days before posting it, to give other people a chance to come up with one (if anybody can, I might give away some CCs as a prize...)
So, any ideas?
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