Al, Bertie, Chris and Di have sums of money totalling £150. Al and Bertie have £55 between them and Al and Chris have £65 between them. What is the difference between the amounts that Al and Di have?
Select one option, then click Submit.
£25
£30
£35
£40
£45
Select an option, then submit.
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Intermediate Mathematical Challenge 2006 (2006)
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