A repost consists of 20 sheets each off 55 lines and each such line consists of 65 characters. This report is reduced onto sheets each of 65 lines such that each line consists: of 70 characters. The percentage reduction in number of sheets is closer to
Solution
Total character in 20 sheets of 55 lines each = 20 * 55 * 65
Let the number of sheets after reductio = N
According to the question:
20 * 55 * 65 = N * 65 * 70
N = $$\frac{110}{7} = 15.7 pages = 16 pages$$
Reduction in number of sheets = 20 - 16 = 4 pages
Required percent = $$\frac{4}{20} * 100 = 20$$%
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