Aubrey has a shelf full of books. • Exactly 1 }3 of the books on the shelf are mysteries. • Aubrey has read 10 of the mysteries on the shelf. • The number of mysteries Aubrey has read is greater than 1 }5 of the number of mysteries on the shelf and less than 1 }4 of the number of mysteries on the shelf. Which could be the number of books on the shelf?
Aubrey has a shelf full of books. • Exactly 1 }3 of the books on the shelf are mysteries. • Aubrey has read 10 of the mysteries on the shelf. • The number of mysteries Aubrey has read is greater than 1 }5 of the number of mysteries on the shelf and less than 1 }4 of the number of mysteries on the shelf. Which could be the number of books on the shelf?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
Aubrey has a shelf full of books.
• Exactly 1
}3
of the books on the shelf are mysteries.
• Aubrey has read 10 of the mysteries on the shelf.
• The number of mysteries Aubrey has read is greater than 1
}5
of the number of
mysteries on the shelf and less than 1
}4
of the number of mysteries on the shelf.
Which could be the number of books on the shelf?
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