A chunk of pages is missing from a book. The sum of the missing page numbers is 9808. What are those page numbers?
Continued from previous post....
19616= 2^5 * 613
= (m-n)(m+n+1)
so,
m-n=32; m+n=612
m=322 ; n=290
So, the page numbers are 291 to 322.
Edited on November 13, 2009, 3:10 pm