Question

find the cost of painting the wall as shown at the cost of rupees 15 per m2 ​

Answer 1

$Answer \: \\ \\ Area \: \: of \: window \: = 2m \times 1.5m = 3m {}^{2} \\ \\ Area \: of \: remaining \: part \: = \\ (7m \times 5m) - (2m \times 1.5m) = 35m {}^{2} - 3m {}^{2} = 32m {}^{2} \\ \\ Area \: of \: wall = 32m {}^{2} \\ \\ For \: \: 1m {}^{2} \: of \: area \: the \: of \: rupees \: is \: 15 \\ \\ For \:area \: 32m {}^{2} \: the \: cost \: of \: painting \: is \\ 32 \times 15 = 480rupees. \\ \\ \\ Therefore \: cost \: of \: painting \: to \: paint \\ an \: area \: of32m {}^{2} \: is \: 480rupees.$

Answer 2

Answer:

the answer is rupees 480.