Math, asked by free999too, 12 hours ago

A door of length 2 m and breadth 1m is fitted in a wall. The length of the wall is 4.5 m and the breadth is 3.6 m. Find the cost of white washing the wall, if the rate of white washing the wall is ₹ 30 per m2.

Answers

Answered by 18vs1010094
3

Answer:

426 rupees

Step-by-step explanation:

area of wall = l*b

                    = 4.5 * 3.6

                    = 16.2m^2

area of door = l*b

                     = 2*1

                      = 2m^2

area of wall need to be painted excluding door = 16.2m^2 - 2m^2

                                                                               = 14.2m^2

cost of white washing per m^2 = 30 rupees

14.2m^2 = 14.2 * 30

               = 426 rupees

Answered by memonmusa2009
1

Answer:

426 rupees

Step-by-step explanation:

area of wall = l*b

= 4.5 * 3.6

= 16.2m^2

area of door = l*b

= 2*1

= 2m^2

area of wall need to be painted excluding door = 16.2m^2 - 2m^2

= 14.2m^2

cost of white washing per m^2 = 30 rupees

14.2m^2 = 14.2 * 30

= 426 rupees

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