Question

the floor of a rectangular hall has a perimeter 250m . if the cost of painting the flour walls at the rate $10 per m² is $,15000, find the height of the hall.(hint)-area of the four walls =lateral surface area.​

Answer 1

Answer:

it's height is 6

Step-by-step explanation:

put first perimeter of rectangle with l+b=x+y

2(x+y) =250

x+y=125

then put lateral surface area of cuboide

2h(l+b) =15000

l+b=125(find above)

2×125×h=15000

250h=15000

h=15000÷250

h=60

it's at the rate of 10 so,

60÷10

6 is the answer

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