Dudeney's Amusements

12. A QUEER THING IN MONEY. It will be found that £66, 6s. 6d. equals 15,918 pence. Now, the four 6's added together make 24, and the figures in 15,918 also add to 24. It is a curious fact that there is only one other sum of money, in pounds,
shillings, and pence (all similarly repetitions of one figure), of which the digits shall add up the same as the digits of the amount in pence. What is the other sum of money?

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@dudeney_puzzles Context: £1 = 20s, 1s = 12d.

1d = 'a penny', 2d = 'two pence'

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