Question

Find find find the area of the four wall of a room whose length is 6 m breadth 5 M and height 4 m also find the cost of whitewashing the wall if the rate of whitewashing is rupees 5 per square metre door Windows and other open ignored

Answer 1

Curved surface area of room:2h(l+b)

:2*4(6+5)m^2

:8(11)m^2

:88m^2

Cost of white washing per square metre is ₹5

So,₹(88*5)

₹440