6. Determine the cost of painting three walls of
a room at the rate of 38 per square metre
and the fourth wall is to be painted in a
different colour at the rate of 60 per square
metre. Each wall is square-shaped and its
side measures 5 metre long.
Answers
The side of square-shaped wall is 5 metre.
Step-by-step explanation:
To find out the cost, we would need to find the area first,
Area of one wall is
4 x side = 4 x 5 = 20 metres square.
Area of four walls would be,
20 x 4 = 80 metres square.
To find the cost of painting one wall with different color,
Area of the wall x Rate of painting per square metre
20 x 60 = 1200
To find the cost of painting three wall with different color,
3 x Area of the wall x Rate of painting per square metre
3 x 20 x 38 = 2280
The total cost would be 2280 + 1200,
which is 3480.
Hence, the total cost of painting would be 3480 (currency).
Answer:
the cost of painting three walls = 2850
forth wall cost of painting = 1500
total cost of painting = 4350
Step-by-step explanation:
side of wall is 5 meter and wall is square-shaped
Area of wall is = (side)²
Area = 5×5 =25 m²
three wall will pained at rate 38 per square meter
area of three wall = 3×25=75 meter²
cost of painting three wall = 75×38=2850
and
one wall will paint at 60 per m²
forth wall cost of painting = 60×25=1500
total cost of painting = 2850+1500= 4350