Euler Problem 31 states: 'In England the currency is made up of pound, £, and pence, p, and there are 'eight coins in general circulation:
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' 1p, 2p, 5p, 10p, 20p, 50p, £1 (100p) and £2 (200p).
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'It is possible to make £2 in the following way:
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' 1×£1 + 1×50p + 2×20p + 1×5p + 1×2p [...] Read More...