Question

the floor of a rectangular hall has a perimeter of 280 m its height is 6 m . find the cost of white washing the four walls (including door windows etc )at the rate of rupees 10 per m2​

Answer 1

Step-by-step explanation:

first you have to give the hint of length and breadth

Answer 2

Answer:

Rs 8040

Step-by-step explanation:

Perimeter = 280 m

Length = L

Width = 6 m

Perimeter ( p) = 2 ( L + 6 )

280 = 2 ( L + 6 )

L = 134 m

Area = length * width

           =  134 * 6 = 804

The rate at which floor is getting white washing = Rs 10 m²

So the total cost to wash = Rs (10 * 804) = Rs 8040