Monday 18 April 2022

Doubly Perfect

SPOTTED the following serial number on a Central Line carriage: 91243.
As usual, each number should be used once, and once only, and must be added, subtracted, multiplied or divided to make a balanced equation.
There are at least two perfect solutions, ie ones that uses the numbers in the order they appear.
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My solutions: 9 x 1 (- 2) = 4 + 3
                       9 x 1 = 2 + 4 + 3

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