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The lower corner of a leaf in a book is ...

The lower corner of a leaf in a book is folded over so as to reach the inner edge of the page. Show that the fraction of the width folded over when the area of the folded part is minimum is `2//3.`

A

`5//8`

B

`2//3`

C

`3//4`

D

`4//5`

Text Solution

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The correct Answer is:
B
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