Final answer:
After subtracting the number of cookies left from the original amount, we calculate the number of boxes by dividing the packed cookies by the box size. Auntie Janet packed a total of 27 boxes of cookies when including the two initially mentioned. However, none of the answer options (a, b, c, d) listed match this calculation, suggesting there may be an error in the question or the presented options.
Step-by-step explanation:
The question involves solving a basic arithmetic problem involving subtraction and division to determine the number of boxes of cookies that Auntie Janet packed. Auntie Janet originally had 358 cookies and packed some into boxes of 8 cookies each. After packing, she had 142 cookies left.
To find out how many cookies she packed, we subtract the number of cookies left from the total number of cookies she had. This gives us the number of cookies packed:
358 cookies - 142 cookies left = 216 cookies packed.
Each box contains 8 cookies, so we divide the total number of cookies packed by the number of cookies per box to find out how many boxes she packed:
216 cookies packed ÷ 8 cookies per box = 27 boxes.
However, since the question mentions that she packed the cookies in two boxes of 8 each, we should confirm that the remaining cookies (after placing 16 cookies in those two boxes) can also be divided evenly into boxes of 8:
216 cookies - 16 cookies (2 boxes of 8 each) = 200 cookies,
which is divisible by 8.
So, Auntie Janet packed 27 boxes in total, including the two mentioned in the question.