Lucas writes a number on the card. It is greater than 600 but smaller that 620. The sum of all digits is 9. How many possible numbers are there?
The digit in the hundred place is 6.
Sum of the digit in the tens place and the ones place
= 9 - 6
= 3
Hundreds |
Tens |
Ones |
6 |
0 |
3 |
6 |
1 |
2 |
The possible numbers are 603 and 612.
Number of possible numbers: 2
Answer(s): 2