Twenty five cylindrical pillars of the Parliament House are to be cleaned. If the diameter of each pillar is 0.5 m and height is 4 m, what will be the cost of cleaning them at 3.50 per sq. metre?
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Therefore the cost of cleaning 20 pillars of diameter 0.5 cm and height 4 m at Rs. 2.50/ m2 is Rs. 314.28. Note: In cases like cleaning, painting, decorating etc
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