Question 626199
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1) fatma is thinking of a 3 digit odd number. the hundreds digit is 3 times more than the units digit. 
the sum of the three digits is 4. what number is fatma thinking off
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<pre>
Since the 3-digit number is odd, its last (the ones) digit is 1, or 3, or 5, or 7, or 9.


If the last digit is '1', then the hundreds digit is 3 and their sum is just 1 + 3 = 4.


So  (a)  then the tens digit is 0 and  (b)  the number itself is 301.


In addition, it is clear that the restriction  " the sum of digits is 4 "  makes other options 
for the last digit IMPOSSIBLE.


So, the answer to this problem is  {{{highlight(highlight(301))}}}.
</pre>

Solved.