A rectangular table consists of 8 columns and 6 rows of cells. How many cells touch the outer border of the table?
Show hints
- First, count the cells of the top and bottom rows.
- For side columns, do not count the corner cells a second time.
Show the answer and solution
Answer: 24
There are 16 cells in the top and bottom rows. In the two side columns between them there are another 2 × 4 = 8. A total of 24.