The three volumes of Encyclopedia of Animal Kingdom sit in order on a shelf with no space ...........

Logical Reasonong (PCS) Arithmetical Reasoning

The three volumes of Encyclopedia of Animal Kingdom sit in order on a shelf with no space between the volumes, all upright, so that their spines are visible, left to right : I, II and III. Each is 30 mm thick, comprising 24 mm of total pages and 3 mm for each cover. A bookworm bores from page 1, volume I, to the last page of volume III. How far does it travel ?

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PCS Previous year General Studies paper 2020 (CSAT)

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90 mm

36 mm

72 mm

84 mm

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Explanation:

bookworm only bores bottom book's top cover 3mm, middle book fully- 30, then top book's bottom cover. that's it..no more than that... so answer is 3+30+3=36 mm

By: Parvesh Mehta

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susheel

Puneet, and jagsir,, As per my opinion, bookworm only bores bottom book's top cover 3mm, middle book fully- 30, then top book's bottom cover. that's it..no more than that... so answer is 3+30+3=36 mm

puneet aggarwal

Its clearly written each is 30mm so total it makes 90mm. Then we have not added 1st books below cover. And then added its upper cover which is 3mm + 6mm of both 2nd book cover, + 3mm of below cover of 3rd book. Which in total addition makes 24+24+24+3+6+3 = 84

Jagsir Kaur

Only pages volume 24+24+24

puneet aggarwal

Its written each is 30mm so it means total is 90mm then how come 36answer. The right answer is 84