the sum of the digit of a number consisting of three digit is 12 the middle digit is equal to half the sum of other two . if the order of the digit is reversed, the number is diminished by 198. find the number.
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5 + 4 + 3 = 12
4 = (5+3)/2
reversed 345
543 - 345 = 198
yesssss
the number is 543
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