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Question
A typist has to type a manuscript of 40 pages. She has typed 30 pages of the manuscript. What is the ratio of the number of pages typed to the number of pages left?
Sum
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Solution
Total number of pages = 40
Number of pages typed = 30
The number of pages left = 40 – 30 = 10
∴ The required ratio = `"Number of pages typed"/"Number of pages left"`
= `30/10`
= `3/1`
= 3 : 1
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Chapter 8: Ratio and Proportion - Exercise [Page 127]
