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If x and y are integers between 10 and 99, inclusive, is (x [#permalink]
24 Jul 2006, 04:46

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If x and y are integers between 10 and 99, inclusive, is (x - y)/9 an integer?

(1) x and y have the same two digits, but in reverse order.
(2) The tensâ€™ digit of x is 2 more than the units digit, and the tens digit of y is 2 less than the units digit.