The product of a 5 decimal-digit number by a 4-decimal digit number will have 8 digits after the decimal. For example:
0.12345 × 0.1234 = 0.01523373 ←8 digits
However, we are multiplying with a whole number and a decimal, we will get 9 digits. Therefore, the answer to your query is 9. Hope this helps and have a great day!
