The digits of a three-digit number add up to 14, and its middle digit equals the sum of the other two digits. If the digits are reversed, the number decreases by 297. What is the number?
Correct answer A. 572
Explanation
Middle digit = 14/2 = 7, so h + u = 7. Reversal decrease 99(h - u) = 297 gives h - u = 3. So h = 5, u = 2 and the number is 572.
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