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LOD-2 Algebra Q.14I could not understand the solution provided in the EBOOK.
I am unable to solve this question, I want to understand the approach.
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This question belongs from LOD-1 (Percentages)Practice Question 1.Mr Mukesh wants to improve his vocabulary. He decides to learn from 2 sources. First, he learns from Norman Lewis Word Power Made Easy, and then he learns from GRE 555 word list. After learning from these two sources, the number of words he knows becomes thrice his original knowledge. On reading the GRE 555 word list, his knowledge increases twice at rate at which his knowledge increases by reading Norman Lewis Word Power Made Easy. By how much percent does his vocabulary knowledge increase when he reads Norman Lewis?a) 10%b) 20%3) 30%4) 40%5) 50%---------------------------------In the question it is specified that the rate is double (for GRE 555), but in the solution they have taken it as y% and 2y%.This may be a dumb question, but I would appreciate more descriptive solution please.
I am unable to solve this question:
There are a certain number of pages in a book. Arjun tore a page out of the book and later found that the average of the remaining page numbers is 46*10/3(fraction). Which of the following were the page number of the page that Arjun had torn?This is Example 5 in the following session: https://catking.testpress.in/courses/398/contents/96151/Even though the solution is given, I could not understand it.ย Please help me to understand this question.Thanks in Advance.