Question

The floor of a rectangular hall has a perimeter 250m.If the cost of painting of the four wall at the rate of rupees 10 per m square is rupees 15000, find the height of the wall

Answer 1

Hi friend,

perimeter of rectangle= 2(l+b) = 250m (given)

2*(l+b) = 250
l+b = (250/2)

l+b = 125m.........(1)

now, cost of painting of the four wall at the rate of rupees 10 per m square is rupees 15000

so, area of 4 walls = (cost of painting 4 walls / cost of painting per m²)

area of 4 walls = (rs15,000/rs10)

area of 4 walls = 1500= 2*h(l+b)

2*h(l+b) = 1500

2*h*125 = 1500.........(from(1))

250*h = 1500

h= (1500/250)

h = 6m

hope this helps you

Thanks......

Answer 2

Answer:

Step-by-step explanation:

See this attachment

Hope this helps you

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