Question

Floor perimeteris 250.Fourwall.Painting rs 10 is per meter sq is 15000 find height of hall

Answer 1

Answer:

Step-by-step explanation:

Perimeter of (rectangular) floor=2(l+b)=250m^2

Cost of painting four wall=Rs15000

Cost of painting 1m^2 area= Rs 10

Area of four wall= 15000/10=1500m^2

Formula to find area of four walls=2(lh+bh)=2h(l+b)=hx2(l+b)

Therefore, h x 2(l+b) =1500m^2

[ as, 2(l+b)=250]

h x 250 =1500m^2

h=1500/250

h=6m

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