Due to sudden floods some welfare associations jointly requested the government to get 100 tents fixed immediately and offered to contribute 50% of the cost. if the lower part of each tent is of the form of the cylinder of diameter 4.2m and height 4mwith the conical upper part of same diameter but of height 2.8m and the canvas to be used costs Rs 100 per sqm, find the amount the associations will have to pay ??



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