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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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Important Questions on Average

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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 81
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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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 82
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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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 83
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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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 84
In a bag, there are 150 coins of ₹1, 50 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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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 85
What is the average of the first seven natural number multiples of 11?
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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 86
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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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 87
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
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CAT
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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 88
Sachin has a batting average of 40 runs per innings in 15 ODIs. It was found that in the 2 ODI match series against South Africa(which were part of his first 15 ODIs), his average score was 40 and not 80. His correct average is