Question

Find the area of the room whose length is 6cm breadth 5cm and height 4m . Also find the cost of white washing the four walls , if the rate of white washing is rs.5 per square meter

Answer 1

Explanation:

The area: S= 2h(a+b) + 2.bottom

h: height

a: length

b: breadth

Sbottom= a.b

S= 2.4.(0.06+0.05) + 2.0.06.0.05= 0.886

The area four walls = 2.(ah) + 2(b.h) = 0.88

The cost= 0.88. 5 =4.4