I am a 4-digit number. If my digits are reversed, I become a 3-digit number. What is the digit in my ones place?
Answer:
Zero
- Let us suppose that the 4-digit number is 3450.
- If we reverse the digits of the number, we will get 0543.
- 0543 is actually a 3-digit number, i.e., 543.
- So, the ones digit of the 4-digit number must be 0 such that if we reverse the number, it becomes a 3-digit number.