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Two volumes of Pushkin, the rst and the second, are side-by-side on a bookshelf. The pages of each volume are 2 cm thick, and the cover { front and back each { is 2 mm. A bookworm has gnawed through (perpendicular to the pages) from the rst page of volume 1 to the last page of volume 2. How long is the bookworm's track?

Two volumes of Pushkin, the rst and the second, are side-by-side on
a bookshelf. The pages of each volume are 2 cm thick, and the cover { front
and back each { is 2 mm. A bookworm has gnawed through (perpendicular to
the pages) from the rst page of volume 1 to the last page of volume 2. How
long is the bookworm's track?

Grade:Select Grade

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
2 years ago
considering rst as first

distance travelled by bookwork is

= pages_book1 + back cover_book1 + front cover_2 + pages_book2;
= 2 + 0.02+0.02+2 cm
=4.04 cm

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