Question

door of dimension 3 metre x 2 metre is on the wall of dimension 10 metre x 10 metre find the cost of painting the ball at a rate of painting is rupees 2.50 per square metre​

Answer 1

Answer:

Step-by-step explanation:

given-dimension of door l-3m

                                        b-2m

and dimension of wall -l2-10m

                                    b2-10m

area of wall - 10*10=100m²

area of door - 2*3=6m²

area of wall to be painted=100 - 6=94m²

cost = 94*2.50=235 rupees

Answer 2

$area \: of \: door \: = length \times breadth \\ = 3 m \times 2m \\ = 6m {}^{2} \\ area \: of \: wall \: including \: door \: = length \times breadth \\ = 10m \times 10m \\ = 100 m{}^{2} \\ area \: of \: wall \: excluding \: door \: = 100 - 6 \\ = 94m {}^{2} \\ total \: labour \: charges \: for \: painting \: the \:wall \: is \: = 2.50 \times 94 \\ = 235 \: rs.$