Question

Assuming is 25 metre long and 30 metre wide m deep find the cost of cementing its floor and four wall rate of 21 m square

Answer 1

Answer:

The Question Is Not very clear but assuming that you have given the dimensions of the floor:

The area of the floor = length x breadth

A = 25 x 30

which gives area = 750m²

Now cost of cementing per sq metre is ₹21/m²

hence, total cost = 21 x Area

= 21 * 750

Which gives total cost = ₹15750

Similarly you can find the cost for 4 walls by taking area by multiplying height (which is not provided by you) and length

and then multiplying that by 4 to give area of 4 walls

Hope this helps!