Step-by-step explanation:

I am also not able to solve thi s question
Answer:
No it doesn't form the triangle because when we sum up two sides the. it should exceed the this side.
Longest book: 396 Shortest book: 1/4×396=99 Middle book: 3×99= 297
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If the book in the middle of her shelf has three times the number of pages of the shortest book then how many pages does the middle book have?
Answer: 297</span>