The dimensions of a room are `14mxx10mxx6.5m.` there are two doors and 4 windows in the room . Each door measures `2.5 mxx1.2 m` and each window measures `1.5 m xx1m.` find the cost of painting the four walls of the room at Rs. 35 per `m^(2)`.

Answer

Rs. 10500

Explanation

Area of 4 walls `=[2(l+b)xxh]=(2xx24xx(13)/(2))m^(2)=312 m^(2)`
Area not to be painted `={(2xx(5)/(2) xx(12)/(10))+(4xx(3)/(2)xx1)}m^(2)=12m^(2)`.