bur and Breadth of the room.19 A wooden bookshelf has external dimensions as follows: Height 110 cm,Depth = 25 cm, Breadth-85 cm (See Fig. 18.5). The thickness of the plank is5ăeverywhere. The external faces are to be polished and the inner faces are to be painted.If the rate of polishing is 20 paise per cm2 and the rate of painting is 10 paise per cm2Find the total expenses required for polishing and painting the surface of theNCERTbookshelf.110 cm

bur and Breadth of the room.19 A wooden bookshelf has external dimensi

1.	bur and Breadth of the room.19 A wooden bookshelf has external dimensions as follows: Height 110 cm,Depth = 25 cm, Breadth-85 cm (See Fig. 18.5). The thickness of the plank is5ăeverywhere. The external faces are to be polished and the inner faces are to be painted.If the rate of polishing is 20 paise per cm2 and the rate of painting is 10 paise per cm2Find the total expenses required for polishing and painting the surface of theNCERTbookshelf.110 cm
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