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The average monthly salarly monthly sala...

The average monthly salarly monthly salary of 20 workers in an office is ₹45900. if the mangers's salary is added then average becomes ₹ 49200 per month. What's manger's monthly salary ?

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Manager's monthly salary
` = ₹ ( 49200 xx 21 - 45900 xx20) = ₹ ( 1033200 - 918000)= ₹ 115200`
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RS AGGARWAL-MEAN , MEDIAN AND MODE OF UNGROUPED DATA -Exercise 18A
  1. The mean of 20 numbers is 18. if 3 is added to each of the first ten n...

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  2. The mean of six numbers is 23. If one of the numbers is excluded , th...

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  3. The average height of 30 boys was calculated to be 150 cm. it was dete...

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  4. The mean weight of a class of 35 student is 45 kg. if the weight of th...

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  5. In a class there are 50 students. Their average weight is 45 kg. Wh...

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  6. The average weight of a class of 39 students is 40 kg. when a new stud...

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  7. The average weight of 15 oarsmen in a boat is increased by 1.6 kg when...

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  8. The mean of 8 numbers is 35. if a number is excluded then the mean is ...

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  9. The mean of 150 items was found to be 60. Later on, it was discoverved...

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  10. The average of 11 results is 60. If the average of first six result...

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  11. The mean 11 numbers is 42. if the mean of the frist 6 numbers is 37 an...

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  12. The mean weight of 25 students of a class is 52 kg. if the mean weight...

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  13. The mean score of 25 observations is 80 and the mean score of another ...

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  14. Arun scored 36 marks in English , 44 marks in Hindi, 75 marks in mathe...

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  15. A ship sails out an island at the rate of 15km/hr and sails back to th...

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  16. There are 50 students in a class, of which 40 are boys. The average we...

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  17. The aggregate monthly expenditure of family was ₹18720 during the firs...

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  18. The mean monthly salary paid to 75 workers in a factory is Rs 5680....

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  19. The mean marks (out of 100) of boys and girls in an examinatin are 70 ...

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  20. The average monthly salarly monthly salary of 20 workers in an office ...

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