Question

the floor of a rectangular hall has a perimeter 250 m if the cost of painting the four walls at the rate of 10 per square is rupees 15000 find the height of the hall​

Answer 1

@ the rate of 10 ₹ /m² the cost is 15000
hence, lateral surface area of the hall is 1500 m²

now 2 (l + b) x h = 1500
250 x h = 1500.... given perimeter is 250
h = 6 m

plzz mark as brainliest..if it helped uh

Answer 2

Given:

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• Perimeter of the hall = 250 m
• Cost of painting the four walls at the rate of ₹10 per m² is ₹15000

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To find:

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• What is the Height of the hall ?

Solution:

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Consider the height of the hall be h metres.

So , ⠀⠀⠀⠀⠀⠀⠀⠀

Area of the four walls = Perimeter of the floor × Height

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$250 \: \times h$

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= 250 h m²

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From the given cost of painting of 1 square metre was ₹10 then cost of painting of the four walls is

= 250 h × 10

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= ₹ 2500 h

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As per the Question the cost of painting of the four walls is ₹ 15000.

⠀Then , 2500 h = 15000

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h = 15000/2500

Height of the hall = 6m

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