SAW this serial number on a Northern Line train: 52529.
As usual, each number should be used once, and once only, and must be added, subtracted, multiplied or divided to make a balanced equation.
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My solution: 5 + 5 - (2÷ 2) = 9
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My solution: 5 + 5 - (2÷ 2) = 9
A second solution is: 5 + 2 = (5 + 9) / 2
ReplyDeleteVery good!
DeleteI know not everyone likes these 'Tube Puzzles', but I find them fun, and a good way to pass a few moments - sometimes more than a few moments - when on the Underground.