SOLUTION: The sum of digits in a three digit number is nine. The tens digit is half the sum of the other two and the hundreds digit is half the units digit.Find the number.

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Question 1179313: The sum of digits in a three digit number is nine. The tens digit is half the sum of the other two and the hundreds digit is half the units digit.Find the number.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
100h%2B10t%2Bu, the number


system%28h%2Bt%2Bu=9%2C2t=h%2Bu%2Cu=2h%29
You could work with this, or find other ways.

Here is a possible method.
First equation, h%2Bu%2Bt=9
Second equation, h%2Bu=2t
The substitution: 2t%2Bt=9
and then
.
.
.