Question

a wall is 4.5 M long and 3M is it has two equal Windows 1st is 80 cm long and 50 cm height and second is 20 centimetre height and 50 cm base .find the cost of painting the wall (living window )

Rupees 15 per metre square

Answer 1

area of the wall including windows=
$lb \\ 4.5 \times 3 \\ 13.5m ^{2}$
area of the window 1=
$lb \\.8\times .5 \: m^{2} \\ 0.4 {m}^{2}$
area of window 2=

$lb \\ .2 \times .5 \: m^{2} \\ 0.1 {m}^{2}$
area of the wall excludin the windows is
$13.5 - (.4 + .1) \\ 13.5 - 0.5 \\ 13 {m}^{2}$
cost of painting 1m^2 wall =rs 15
cost of paintin 13m^2 wall =13×15
=rs 195

Answer 2

Answer:

ans is rs 188.10 make me brainlist