The floor of a rectangular hall has a primeRecharge 250m.if the cost of painting the four walls at the rate of rupees 10per m^2 is 15000,find the height of the hall

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Solution

Given perimeter of the rectangular floor = 250 m
Hence 2(l + b) = 250
Therefore, (l + b) = 125 --- (1)
Area of four walls, A = 15000/10 = 1500 sq m
That is 2h(l + b) = 1500
2h x 125 = 1500
h = 1500/250 = 6
Thus the height of the hall is 6 m.

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The floor of a rectangular hall has a primeRecharge 250m.if the cost of painting the four walls at the rate of rupees 10per m^2 is 15000,find the height of the hall

Given perimeter of the rectangular floor = 250 m Hence 2(l + b) = 250 Therefore, (l + b) = 125 --- (1) Area of four walls, A = 15000/10 = 1500 sq m That is 2h(l + b) = 1500 2h x 125 = 1500 h = 1500/250 = 6 Thus the height of the hall is 6 m.

Given perimeter of the rectangular floor = 250 m
Hence 2(l + b) = 250
Therefore, (l + b) = 125 --- (1)
Area of four walls, A = 15000/10 = 1500 sq m
That is 2h(l + b) = 1500
2h x 125 = 1500
h = 1500/250 = 6
Thus the height of the hall is 6 m.