Due to sudden floods some welfare associations represent government to get 100 tents fixed immediately and offered to pay 50% o Of the cost. If the lower part of each tent is of the form of a cylinder of diameter 4.2 m and height 4 m the conical upper part of same diameter but height 2.8 m , and the canvas to be used costs rs.100 per sqm, find the amount the association will have to pay. What valuesare shown by these associations?

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Answers

2016-03-17T09:02:51+05:30
Area of tent=CSA of cylinder+CSA of cone
l=√r^2+h^2
l=√(2.1)^2+2.8^2
l=√12.25
l=3.5m
area of tent=πrl+2πrh
=πr(l+h)
=22/7×2.1(7.5)
=49.5m^2
cost/m^2=100rs
total cost of hundred tents=100×49.5×100
=495000rs
cost paid by association=50×495000/100
=247500rs



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