Answer:
Step-by-step explanation:
Solve all possible equations:
- 8 + 10 + 1 + 9 + 2
- Adding them all up we get:
- 8 + 10
- = 18 + 1
- = 19 + 9
- = 28 + 2
- = 30
- 30 < 40.
10 will be used for the next equation:
2nd equation:
- 10 + 12 + 1 + 13 + 2
- Solve:
- 10 + 12
- = 22 + 1
- = 23 + 13
- = 36 + 2
- = 38
- 38 < 40.
13 will be used for the final equation:
Final equation:
- 10 + 13 + 1 + 15 + 2
- = 10 + 13
- = 23 + 1
- = 24 + 15
- = 39 + 2
- = 41.
- 41 > 40.
The 3 digits are 10, 13, 15.
