Answer :

To find the sum of 3,234,567 and 6,547,915, we need to add the two numbers together step-by-step:

```
3,234,567
+ 6,547,915
-----------
```

Let's add the numbers column by column from right to left:

1. Add the ones place:
[tex]\(7 + 5 = 12\)[/tex]
Write down 2 and carry over 1.

2. Add the tens place:
[tex]\(6 + 1 + 1 = 8\)[/tex]

3. Add the hundreds place:
[tex]\(5 + 9 = 14\)[/tex]
Write down 4 and carry over 1.

4. Add the thousands place:
[tex]\(4 + 7 + 1 = 12\)[/tex]
Write down 2 and carry over 1.

5. Add the ten-thousands place:
[tex]\(3 + 4 + 1 = 8\)[/tex]

6. Add the hundred-thousands place:
[tex]\(2 + 5 = 7\)[/tex]

7. Add the millions place:
[tex]\(3 + 6 = 9\)[/tex]

Putting it all together:

```
3,234,567
+ 6,547,915
-----------
9,782,482
```

So, the sum of 3,234,567 and 6,547,915 is 9,782,482.

Therefore, the correct answer is:
B) 9,782,482