A report consists of 20 sheets each of 55 lines and each such line consist of 65 characters

A report consists of 20 sheets each of 55 lines and each such line consist of 65 characters. This report is retyped into sheets each of 65 lines such that each line consists of 70 characters. The percentage reduction in number of sheets is closest to

  1. 5
  2. 20
  3. 30
  4. 35

Answer

Total characters in the report = 20*55*65

If the report is retyped into 65 lines with 70 characters, then pages required

(20*55*65)/(65*70) = 15.7 pages or 16 sheets

4 pages have been reduced, so percentage of reduction is 4/20 = 0.20 or 20%

The correct option is B.