Form the greatest possible 5-digit number using the clues:
All five digits are different
None of the five digits are 1
The digit in the ten thousands place is greater than 7
The sum of all five digits is 18
The greatest digit is equal to the sum of the other four digits.
+118667 All five digits are different
The digit in the ten thousands place is greater than 7 so it is 8 or 9
The sum of all five digits is 18, others add to 10 or 9
The greatest digit is equal to the sum of the other four digits. So the the biggest is 9 and the others add to 9
None of the five digits are 1 0+2+3+4=9
so the digits from biggest to smallest are 9,4,3,2,0
The biggest possible number is 94 320 just like guest said.
