Final answer:
After examining the options A to D, the correct answer is option C (9×6=54), where 6 is the missing digit that completes the multiplication problem 9×O=04, resulting in last digit being 4.
Step-by-step explanation:
The question involves solving a multiplication problem to find the missing digits. Given the equation 9×O=04, we are looking for a single-digit number that when multiplied by 9 results in a product whose last digit is 4. By checking the provided options:
- A) 9×4=36
- B) 9×5=45
- C) 9×6=54
- D) 9×7=63
We can see that option C is the correct one since the last digit of the product is 4: 9×6=54. Therefore, the missing digit 'O' is 6.