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19-03-2022
Mathematics

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List all three digit numbers that have only fours and fives as it’s digit.What is the sum of all of these numbers?

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19-03-2022

Answer:

The total number of 3-digit numbers that can be formed = 2 × 2 × 2 = 8

1. 444

2. 445

3. 454

4. 455

5. 544

6. 545

7. 554

8. 555

Sum of all these numbers: 3,996

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