Question

A hall has four walls,each measuring 11.5m*7.2m.it has two doors of height 2mand width 1m.it also has three windows of size 1m*0.5 m.find the cost of white washing the walls at the rate of ₹65per square meter

Answer 1

Answer:

21170.5

Step-by-step explanation:

11.5*7.2*4=331.2

2*1*2=4

1*.5*3=1.5

4+1.5=5.5

331.2-5.5=325.7

325.7*65=21170.5

Answer 2

Answer:

The solution for this question is :-

The cost of white washing the walls at the rate of ₹65per square meter is =

Step-by-step explanation:

From the given data in the question we have got that:-

The length of the wall of the hall is = 11.5m

and breadth is = 7.2m

Now the total area of these four walls are

= 4*11.5*7.2 m²

= 331.2 m²

Now there are 2 doors in these walls of length

= 2m and width = 1m

So the area of those two doors are = 2*2*1 m²

= 4 m²

Also three windows on the walls having length

= 1m and width = 0.5m

So the area of those three windows are

= 3*1*0.5 m²

=1.5 m²

It is stated in this question that we should only paint those walls without doors and windows do we should remove the area of these windows and doors so that the remaining area will be

= 331.2-4-1.5= 325.7 m²

So,the cost of white washing the walls at the rate of ₹65per square meter will be

= 325.7 * 65 rupees

=21170.5 rupees

This is the required solution for this problem.

To know more about these Area of Rectangle problem, visit:-

https://brainly.in/question/28267523

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