Math, asked by das97966975, 1 year ago

A room is 9 meter long, 8 meter broad and 6.5 my high. It has one door of dimensions 2 meter × 1.5 meter and three windows each of dimensions 1.5 m × 1 m. Find the cost of white washing the walls at Rs 3.80 per sqare meter

Answers

Answered by ashapuri1977
0

Step-by-step explanation:

T. S. A of room = 9 × 8 × 6.5

= 468 metre

Square

Surface area of door = 2 × 1.5

= 3 metre sq.

Surface area of 4 windows =

= 1.5 × 1 × 4

= 6 metre sq.

Area of whitewashing =

= 468 - 6 - 3

= 459 metre sq.

Therefoe cost = 459 × 3.80

= 1744.2 rupees answer

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