Total area of the wall = 3700 sq. cm
Number of mural paintings = 79
Remaining area on the wall will be the remainder of 3700 ÷ 79
Calculating 3700 ÷ 79 by long division method, we get:
4 6
________
7 9 ) 3 7 0 0 79 × 4 = 316
3 1 6 79 × 6 = 474
_______
5 4 0
4 7 4
_______
6 6
The remainder of 3700 ÷ 79 is 66.
∴ Area for the banners = 66 sq.ft