If a user can type a content on 20 sheets, one sheet having 55 lines and a line can contain 65 characters. The content is again retyped in a new set of sheets having 65 lines and each line can contain 70 characters. Calculate the reduction in number of sheets.
a) 25
b) 10
c)15
d)20

• 20sheets,55lines,65 characters=20*55*65=71500(total characters)
  new set having 65lines and each line having 70 characters =65*70=4550
  then 71500/4550=15.7142===>16pages=20% reduction
  ans: d
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