Question

A report consists of 20 sheets each of 55 lines and each such. line consists of 65 characters. This report is reduced into sheet each of 65 lines such that each line consists of 70 characters. The percentage reduction in number of sheets is closest to a)20. b)5. c)30. d)35.​

Answer 1

Let the new number of sheets be x.

Then, 20 × 56 × 65 × = x × 65 × 70 ⇒ x = 20 × 56 × 65 / 65 × 70

∴ Percentage reduction in number of sheets = $\frac{(20-16)}{20}$ × 100

= 20%

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