Question

A report consists of 20 sheets of 56 lines and each such line consists of
65 characters. The report is reduced into sheets, each of 65 lines such that
each line consists of 70 characters. What is the percentage reduction in
the number of sheets ?​

Answer 1

Answer:

Let x be the page required when report is retyped

Now, we can use work equivalence method

20 × 55 × 65 = 70 × 65 × x

Or, x = 

20×55×6570×6520×55×6570×65

Or, x = 15.70 = 16 pages.

Hence, % reduction in pages = 

(20−16)×10020(20−16)×10020

   

==

 

20%