The measures of a textbook are 22 cm x 11 cm x 3 cm. It is to be covered with a brown paper. If
each book is required 164 cm² of more paper for folding, how much paper is required to wrappe
85 such textbooks ?
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Answer:
Step-by-step explanation:
If a text book is to be covered with paper
we have to cover top surface, bottom surface and one side surface
Area of top surface = Area of bottom surface = 22 cm X 11cm = 242 cm2
Area of the side surface = 22cm X 3 cm = 66 cm2
Total surface area to be covered = 242+ 242 + 66 = 550 cm2
Paper reqd for folding = 164 cm2
Total paper reqd for one book = 550 + 164 = 714 cm2
Total paper reqd for 85 books= 85 * 714 = 60690 cm2 (Answer)
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