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18. A three-digit number may be expressed as 100h + 10t u, where h is the hundreds digit, t is the tens digit, and u is the units digit (for example, 345 = 100(3) + 1(4) +5). For a certain three- digit number, the sum of the digits is 18; the tens digit is equal to the sum of the other two; and if the digits are reversed, the new number is 99 less than the original number Find the number.
18. A three-digit number may be expressed as 100h + 10t u, where h is the hundreds digit, t is the tens digit, and u is the units digit (for example, 345 = 100(3) + 1(4) +5). For a certain three- digit number, the sum of the digits is 18; the tens digit is equal to the sum of the other two; and if the digits are reversed, the new number is 99 less than the original number Find the number.
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Beverley SmithLv2
13 Jun 2019