Question

select one room, take measuring tape and find length
breadth and hight of the room. by using dimensions,
of the room find out the volume of the room area of
four walls, cost of painting and caluculate the same with proper steps.



plz answer my question ​

Answer 1

ANSWER

It is given that length, breadth and height of a room are 8 m, 5 m and 3 m respectively.

Area of four walls of the room is: 2h(l+b)

A=2h(l+b)=2×3(8+5)=6×13=78 m2

Area of the ceiling is: 

A=l×b=8×5=40 m2

Total area of the four walls and the ceiling of the room is 78+40=118 m2

It is given that cost of white washing is Rs.15/m2, therefore,

Total cost of white washing is:

118×15=1770

Hence, the cost of white washing the walls is Rs.1770.