CSAT: Find the Smallest Number for Divisibility

Question

What is the smallest number that must be added to 3456 so that the resulting number is exactly divisible by 9?

Accepted Answer

We are given the number 3456 and asked to find the smallest number that must be added so that it becomes exactly divisible by 9. Using the divisibility rule of 9, we first find the sum of the digits of 3456: 3 + 4 + 5 + 6 = 18 Since 18 is divisible by 9, the number 3456 itself is already divisible by 9. So, the smallest number that needs to be added is 0. However, 0 is not given in the options. To keep a number divisible by 9, we must add a multiple of 9. The smallest multiple of 9 given in the options is 9. Answer: 9 (Option D)

Answer

3

Answer

5

Answer

6

Answer

9

Options

Explanation

Explanation

Step 1: Use divisibility rule of 9

Step 2: Check divisibility

Step 3: Smallest number to be added

✅ Answer

Question

Options

Explanation

Explanation

Step 1: Use divisibility rule of 9

Step 2: Check divisibility

Step 3: Smallest number to be added

✅ Answer