A wooden bookshelf has external dimensioollows: Height 110 cm, Depth 25Breadth 85 cm (see Fig. 13.31). The thicknethe plank is 5 cm everywhere. The externalare to be polished and the inner faces aretpainted. If the rate of polishing is 20 paiscm' and the rate of painting is 10 paise perfind the total expenseś required for polishingpainting the surface of the bookshelf.xercises are not from examination point of

A wooden bookshelf has external dimensioollows: Height 110 cm, Depth 2

1.	A wooden bookshelf has external dimensioollows: Height 110 cm, Depth 25Breadth 85 cm (see Fig. 13.31). The thicknethe plank is 5 cm everywhere. The externalare to be polished and the inner faces aretpainted. If the rate of polishing is 20 paiscm' and the rate of painting is 10 paise perfind the total expenseś required for polishingpainting the surface of the bookshelf.xercises are not from examination point of
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