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A door of length 2m and breadth 1m is fi...

A door of length 2m and breadth 1m is fitted in a wall. The length of a wall is 4.5m and the breadth is 3.6m [fig 11.6]. Find the cost of white washing the wall, if the rate of white washing the wall is rs20 per `m^2`.

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SUBHASH PUBLICATION-PERIMETER AND AREA-EXAMPLE
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  15. Find the circumference of the circles with the following radius: (Take...

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