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Mean of the marks obtained = (18 + 22 + 25 + 28 + 35 + 39 + 47 + 50 + 50 + 64 + 65 + 85) ÷ 12 = 44 When the data in arranged in ascending order, average of the 6th and 7th observation = (39 + 47) ÷ 2 = 43 So, required difference = 44 - 43 = 1
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A candidate who gets 22% marks fails by 10 marks but another candidate who gets 40% marks gets 14% more than the passing marks. Find the maximum marks.
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Amit scored 10% marks in a test and failed by 70 marks, while Lisa scored 30% marks in the same test and failed by 30 marks. Find the passing marks of t...
Instead of increasing the number first by 20% and then by 25%, it is reduced by 10%. What percentage does the final value represe...
In an election between two candidates, winner got 55% of total valid votes. If total number of votes cast were 1000 out of which 6% were invalid, then f...
Monthly income of A is Rs. 85000 out of which he spent 25%, 18% and 24% of his total income in rent, medicine and transportation, respectively. Find his...
Rajesh spent 45% and 20% of his monthly salary on food and rent, respectively. Of the remaining amount, he gave 16% and 25% to his mother and brother, r...