Quote Originally Posted by LittleGrizzly
but they paid 10 pounds and recieved a pound back each making thier total contribution 27 pounds
Why don't we do an experiment... you send me 30 pounds in 3 batches of 10 pound coins. I'll send you back 1 pound from each batch... perhaps we can figure it out that way.
I'm willing to keep trying until we figure it out!