Question
A typist can type 80 lines in 40 minutes but he leaves
8% margin on each line. In how much time he will type 92 pages with 160 lines on each page in which he leaves 25% more margin than before?Solution
Capacity of Typist= (80 lines)/(40 minutes) × 92% = 1.84 Now, 25% of 8 = 2 Margin % = (8 + 2) = 10% Required time = (160 ×92 ×90%)/1.84 = 7200 minutes = 120 hours
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