Question

The floor of a rectangle hall has a perimeter 250m.If the cost of painting the four walls at the rate of rupees 10 per m^2 is 15000,find the height of the hall.​

Answer 1

Step-by-step explanation:

▪️Perimeter of rectangular hall = 2(l + b) = 250 m

▪️Total cost of painting = Rs.15000

▪️Rate per m2 = Rs.10

▪️Area of four walls = 2(l + b) h m2 = (250×h) m2

Area of four walls = 2(l + b) h m2 = (250×h) m2A/q,

▪️(250×h)×10 = Rs.15000

▪️⇒ 2500×h = Rs.15000 

▪️⇒ h = 15000/2500 m

▪️⇒ h = 6 m 

▪️Thus the height of the hall is 6 m.

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