Multiple choice

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

  1. 20

  2. 5

  3. 30

  4. 35
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Original total characters = 20 * 55 * 65 = 71500. New sheets needed = 71500 / (65 * 70) = 71500 / 4550 = 15.71, which rounds to 16 sheets. The reduction is (20 - 16) / 20 = 4 / 20 = 20%.

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