Answer:
:
Each part: 2 Marks
(a) There are 3 vertical columns of sugar bags in this box.
The first column has 9 bags of which 5 can be seen and the other 4 are completely hidden.
The second column has 6 bags of which 4 can be seen, and similarly, the third column has 3 bags.
So, the total number of bags = 9 + 6 + 3 = 18.
(b) Now, in the second column, we can see that there is space for 3 more bags and the third column has space for 6 more bags.
The remaining space can be filled with 2 more vertical columns, each having 9 bags.
So, there is a space in the box for $3+6+(9\times 2)=9+18=27$ more bags.