5. By selling 25 lamp shades at the price of 1 ₹ . 205= each, Farida made a profit of 2 137 . For how much did she purchase the 2 lamp shades?
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In the figure, you see the frame of a lampshade. It is to be covered with a decorative cloth. The frame has a base diameter of 20 cm and height of 30 cm. A margin of 2.5 cm is to be given for folding it over the top and bottom of the frame. How much cloth is required for making lampshade?
208730
Answer =Rs 2200cm square
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