The correct option is
B 615
Number of white chocolate bricks = 67
Number of dark chocolate bricks = 548
To find the total number of bricks, we need to add both the number of bricks together.
Let us fill the values in the place value chart and add them.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1145598/original_Screenshot_2021-05-25_201007.png)
Let's add the digits at the ones, tens and hundreds places of 548 to the digits of 67 at their corresponding places.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1156583/original_Screenshot_2021-06-01_115420.png)
Adding 8 and 7 gives 15.
We regroup it as 1 ten and 5 ones.
Similarly, we get 1 + 6 + 4 = 11
We regroup it as 1 ten and 1 ones.
Finally, 5 + 1 = 6
So, we get, 548 + 67 = 615
Hence, Ali buys 615 chocolate bricks altogether.