Question 1203716
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3 50p coins and 4 20p coins, or 1 50p coin and 9 20p coins, makes £2.30<br>
With either of those starts, 10p more makes £2.  So you can't have any combination of other coins that makes 10p, but you can have 9p more.<br>
ANSWER: 239p or £2.39<br>