Q: Which of the following numbers is divisible by 6?
Solution: 18 is divisible by both 2 and 3, hence by 6.
Steps: 4
Step 1: Understand that a number is divisible by 6 if it is divisible by both 2 and 3.
Step 2: Check if the number is even (divisible by 2). An even number ends with 0, 2, 4, 6, or 8.
Step 3: Check if the sum of the digits of the number is divisible by 3. If the sum can be divided by 3 without a remainder, then the number is divisible by 3.
Step 4: If the number passes both checks from Step 2 and Step 3, then it is divisible by 6.
