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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.

Can you work out your weight in kilograms if you know it in stones and pounds? You need to know that 1 pound is 0.454kg and that 14 pounds make a stone.

Answer: e.g. 8st 11Ib = 123 Ib = nearly 56k