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Harry looked at the scrap of paper in the boy’s hand. “That 5-figure number?” he asked. “It doesn’t mean a thing to me. Should it?” “I suppose not, Dad, but it is rather special,” Ted replied. “Half of it is one less than the square of our number, and a third of it is one less than the square of Aunt Betty’s number.” What was Betty’s number?
Betty’s number was 89
Betty’s number was 72
Betty’s number was 66
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