Question

The measures of a textbook are 25 cm into 15 cm into 5 cm this book is to be covered with brown paper if each book required 100 cm square of more paper folding how much paper is required to wrap 75 such textbooks

Answer 1

Answer:

4275000

Step-by-step explanation:

measure of textbook=25×15+15×5+5×25

=570

each book required cover=100cm

=570×100

57000

cover required for 75 textbook=57000×75

4275000

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Answer 2

The total paper required of wraping  for 75 books=$93750cm^2$

Step-by-step explanation:

Length of book=l=25cm

Breadth of book=b=15cm

Height of book=h=5cm

Surface area of book=$2(lb+bh+hl)$

Surface area of book=$2(25\times 15+15(5)+5(25))=2(375+75+225)=1150cm^2$

Paper required extra to fold=100 square cm

Paper required for wraping of 1 book=$1150+100=1250cm^2$

Total paper required for wraping  for 75 books=$1250\times 75=93750cm^2$

Hence,the total paper of wraping required   for 75 books=$93750cm^2$

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