Question

the floor of a rectangle has perimeter 125m if the cost of painting the four walls at the rate of rs 10 per m^ is rs 25000 find the height of the wall​

Answer 1

Solution :

It is mentioned that in a certain room, the cost of painting the four walls at a cost of Rs. 10 per m^2 is RS. 25,000

Thus, we can find that the area of the four walls is 2500 m^2.

It is given that the perimeter of the floor is 125 m.

Let us assume that the height of the walls is h m.

The Area of Four Walls :

> 2( l + b) h

> Perimeter * Height

> 125 h = 2500

> h = 20 m.

Thus, the height of the walls is 20m.

This is the required answer,

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Answer 2

Answer:

Given :-

• Perimeter of floor = 125 m
• Cost of painting four walls at ₹10 per m is ₹25000

To Find :-

Height

Solution :-

Let the height be h m

2(l + b) h

Now, Multiply perimeter and height

125 h = 2500

h = 2500/125

h = 20 m