Question

A gate having dimensions 2 m X 1 m is in the wall of 3 m X 5 m. If the cost of colouring is Rs. 100 per m2 , find the total cost of colouring the wall​

Answer 1

Step-by-step explanation:

450

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Answer 2

Area of rectangular door=length×breadth=2m×1m=2m2

Area of wall including door=length×breadth=4.5m×3.6m=16.2m2

Now, Area of wall excluding door

=Area of wall including door−Area of door

=16.2−2=14.2m2

Since, The rate of white washing of 1m2 the wall=Rs. 20

Therefore, the rate of white washing of 14.2m2 the wall=20×14.2

=Rs. 284

Thus, the cost of white washing the wall excluding the door is Rs. 284.

Answer 3

Area of rectangular door=length×breadth=2m×1m=2m2

Area of wall including door=length×breadth=4.5m×3.6m=16.2m2

Now, Area of wall excluding door

=Area of wall including door−Area of door

=16.2−2=14.2m2

Since, The rate of white washing of 1m2 the wall=Rs. 20

Therefore, the rate of white washing of 14.2m2 the wall=20×14.2

=Rs. 284

Thus, the cost of white washing the wall excluding the door is Rs. 284.

Answer 4

Area of rectangular door=length×breadth=2m×1m=2m2

Area of wall including door=length×breadth=4.5m×3.6m=16.2m2

Now, Area of wall excluding door

=Area of wall including door−Area of door

=16.2−2=14.2m2

Since, The rate of white washing of 1m2 the wall=Rs. 20

Therefore, the rate of white washing of 14.2m2 the wall=20×14.2

=Rs. 284

Thus, the cost of white washing the wall excluding the door is Rs. 284.