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Puzzle of the Day

These puzzles are also printed in Eight days a week, a booklet published by the Association of Teachers of Mathematics.

Find amounts of money that can be made up in two ways so that one set of coins has twice as many coins as the other (but not using only 1p and 2p coins). e.g. 71p is 50p, 20p, 1p (3 coins) or 20p, 20p, 20p, 5p, 5p, 1p (6 coins)

Answer: eg. 97p is 50+20+20+5+2 or 20+20+20+10+10+10+2+2+2 +1