Question

A notebook is made up of sheets folded in middle and stapled.Each sheet forms two leaves i.e.,four pages.On removing some papers of the first half and second half of the book,Joe found the no of leaves,in the first case as odd and in the second case as even.If the sum of the numbers of the pages on the last leaf of the book is 63,then what could be the maximum possible sum of the numbers on the pages of leaves that were left in the book?
options
(a)435 (b)420 (c)451 (d)471

Answer 1

It would be 451
but I am not sure