Question

numbers are amatraer in each case. Take a 3 digit number. Reverse it. Subtract the smaller number from the larger one side the subtraction by 99. What is the remainder?​

Answer 1

Step-by-step explanation:

For a 3-digit number, the hundreds place cannot be 0. It can be any other digit from 1-9. Hence, there can be 9 digits in the hundreds place. In the tens place and the one's place, there can be any digit from 0-9. There is a possibility of 10 digits in the hundredth place and 10 digits in the unit's place. Thus, there are 9 × 10 × 10 = 900 three-digit numbers in all. Therefore there are 900 three-digit numbers in all.