In a newspaper there are 48 pages, made of 12 sheets of paper.

In the first sheet page numbers are 1,2 and 47,48.

Then find the other 3 pages of the sheets in which 33 is present

Solution:

Extreme pages give sum = 49

1 and last =1+48 = 49; 2nc and 2nd last = 2+47 = 49

And also sheets give numbers in a pair such as 1,2 and 47,48