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Find the average of four numbers 234, 445, 515, 334.

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Important Questions on Average

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The average salary per head of all the workers in a company is 9000. The average salary of 15 officers is 5000 and the average salary per head of the rest is 10,000. Find the total number of workers in the company.
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The average age of 10 men is increased by 3 years when one of them, whose age is 54 years is replaced by a woman. What is the age of the woman?
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The average monthly expenditure of Aman was 100 during the first 3 months, 200 during the next 4 months and 400 during the subsequent five months of the year. If the total saving during the year was 3000, find Aman's average monthly income(to the closest rupee)
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Ram bought 2 articles for 5.50 each, and 3 articles for 3.50 each, and 3 articles for 5.50 and 5 articles for 1.50 each. The average price for one article is
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In a bag, there are 150 coins of 150 p and 25 p denominations. If the total value of coins is 150, then find how many rupees can be constituted by 50 p coins.                                                                  
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What is the average of the first seven natural number multiples of 11?
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The age of two friends Aman and Baman is in the ratio 1:2. After 5 years, the ratio of their ages will become 3:5. Find the average of their ages after 10 years.
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If we take four numbers, the average of the first three is 20 and that of the last three is 10. If the first number is 20, the last number is