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The average of 20 observations is 27. If...

The average of 20 observations is 27. If each observation is multiplied by 3, then find the new average.
20 मानों का औसत 27 है | यदि प्रत्येक मान को 3 से गुणा किया जाता है | तो नया औसत है :

A

91

B

61

C

81

D

71

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Average of 12 numbers is 48. If each number is increased by 11, then what will be the new average? 12 संख्याओं का औसत 48 है | यदि प्रत्येक संख्या को 11 से बढ़ा दिया जाए, तो नया औसत कितना होगा ?

The average of 4 numbers is 9. If one more number 14 is included, then what will be the new average ? 4 संख्याओं का औसत 9 है | यदि एक और संख्या 14 को भी शामिल किया जाए, तो नया औसत कितना है ?

The average of 13 numbers is 42. If a 14th number is included, then the average becomes 44. What is the 14th number? 13 संख्याओं का औसत 42 है | यदि 14वीं संख्या को शामिल कर लिया जाए, तो यह औसत 44 हो जाता है | 14वीं संख्या कौन सी है ?

Average of 10 numbers is 14.8. If two numbers 5 and 23 are replaced by 13 and 26 respectively, then what is the new average? 10 संख्याओं का औसत 14.8 है | यदि दो संख्याओं 5 और 23 को क्रमशः 13 और 26 से बदल दिया जाता है, तो नया औसत कया होगा ?

What is the average of 59, 63, 68, 77, 74 and 73, when each number is divided by 23 ? 59, 63, 68, 77, 74 तथा 73 का औसत कितना है, जब प्रत्येक संख्या को 23 से विभाजित किया जाता है ?

The arithmetic mean of 100 observations is 24, 6 is added to each of the observations and then each of them is multiplied by 2.5. Find the new arithmetic mean. 100 प्रेक्षणों का समांतर माध्य 24 है। उन प्रेक्षणों में प्रत्येक में 6 जोड़ने पर, तत्पश्चात् प्रत्येक को 2.5 से गुणा करने पर, उनका नया समांतर माध्य कितना हो जाएगा?

The average of four numbers is 20. If the average of the first two numbers is 15, then what is the average of the last two numbers? चार संख्याओं का औसत 20 है | यदि पहली दो संख्याओं का औसत 15 है, तो अंतिम दो संख्याओं का औसत ज्ञात करें |

The average marks of 30 boys is 88, and when the top scores were excluded, the average marks reduced to 87.5. If the top two scores differ by 2, then the highest marks is: 30 लड़कों का औसत अंक 88 है तथा जब शीर्ष अंक को हटा दिया जाता है, तो औसत अंक कम होकर 87.5 हो जाता है | यदि शीर्ष दो अंकों में 2 का अंतर है, तो शीर्ष अंक कितना है ?

The average of n number is 36. If each of 75% of the numbers is increased by 6 and each of the remaining numbers is decreased by 9, then the new average of the numbers is: n संख्याओं का औसत 36 है | यदि इन संख्याओं के 75% में से प्रत्येक को 6 से बढ़ा दिया जाए और प्रत्येक शेष संख्या को 9 से कम कर दिया जाए, तो इन संख्याओं का नया औसत क्या होगा ?

PINNACLE-AVERAGE-EXERCISE
  1. There are 90 students in a class out of which 60% are girls and the re...

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  2. The average marks of Madhu in four subjects is 64 and she got 69 marks...

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  3. The average of 20 observations is 27. If each observation is multiplie...

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  4. A person bought 15 articles @ Rs. 70 per article, 13 articles @ Rs. 60...

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  5. The average temperature of the first three days of the week is 23^@C a...

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  6. The average score of 30 students is 65, 36 students is 35 and 34 stude...

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  7. The average number of pages of 9 books is 400. If the average number o...

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  8. In a class, the number of girls is 60% more than that of boys. The ave...

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  9. The average of 15 numbers is 45. The average of the first six numbers ...

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  10. The average weight of 60 students in a class is 56.4 kg. If 12 student...

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  11. The average of a few numbers is 48. If 75% of the numbers are increase...

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  12. The number of students in classes A and B are 60 and 70, respectively....

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  13. There are three positive numbers. If the average of any two of them is...

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  14. The average of 12 numbers is 18.5. The average of first six numbers is...

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  15. There are 96 students in a class, out of which the number of girls is ...

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  16. The average temperature of one week was 30^@ c . If the average tempe...

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  17. The daily average rainfall on 5 days of the week is 30 mm.If the rainf...

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  18. The average weight of 8 gold coins is 20 g per coin. The average weigh...

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  19. The average of a, b and c is 9. The average of b and c is 10. What is ...

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  20. The average of a and b is 36. The average of b and c is 42. What is th...

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