Directions: Read the following information carefully and answer the question that follows:

There are seven books B1, B2, B3, B4, B5, B6, and B7, in a rack. No two books have the same number of pages. B7 has more number of pages than B5, but not more than B3 and B4. B1 has lesser number of pages compared to B4. B3 is present in the middle of the row and has more number of pages than B5. B6 has the second least number of pages. B2 does not have the highest number of pages.