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A plastic box 1. 5 m long, 1. 25m wide a...

A plastic box `1. 5 m` long, `1. 25m` wide and `56 c m` deep is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet, determine: The area of the sheet required for making the box. The cost of sheet for it, if a sheet measuring `1m^2` costs `R s .20.`

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RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A CUBOID AND CUBE-All Questions
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