A wall has a length and height of 8 m and 4 m
respectively. Two square windows are present
with sides 2 m. If the cost of putting wallpaper on
the wall is 80 per square metre, then what will
be the total cost of putting wallpaper?
Answers
The answer to your question could be:-
Given,
Wall's length = 8 meters
Wall's breadth = 4 meters
Wallpaper's cost per square meter = 80 Rupees
We need to apply the wallpaper on this wall but this wall also has two windows whose side = 2 meters;
And because we cannot waste our money by avoiding the windows, this could be the solution -
Because area of a rectangle = Length * Breadth
Area of the whole wall (without considering the windows) = 8 * 4
= 24 square meters
Because area of a square = Side by the power of 2
Area of each window = 2 * 2 = 4 square meter
Area of the wall which needs the wallpaper = 24 - (4 + 4) = 24 - 8 = 16 square meters
Cost of putting the wallpaper to the above area = 80 * 16 = 1280 Rupees
Therefore the owner of the house who is considering this upgrade, should have 1280 Rupees in his/her pocket.
Answer:
1984
Step-by-step explanation:
just simply do
that
perimeter of wall=8×4=32
perimeter of 2 window is = 2×2=4
so 32-8=24
80×24=₹1984