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Average of 50 numbers was calculated as ...

Average of 50 numbers was calculated as 20 when three numbers, 26, 36 and 64 were wrongly read as 31, 46 and 59 respectively. What is the correct average?
50 संख्याओं का औसत 20 पाया गया जब तीन संख्याओं 26, 36 और 64 को क्रमशः 31, 46 और 59 पढ़ लिया गया था | सही औसत ज्ञात करें |

A

26.2

B

19.8

C

20.2

D

24.4

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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 ?

The average marks of 50 students in a class was found to be 64. If the marks of two students were incorrectly entered as 38 and 42 instead of 83 and 24 respectively, then what is the correct average? किसी कक्षा में 50 छात्रों के औसत अंक 64 पाए गए | यदि दो छात्रों के अंक भूलवश 83 एवं 24 के बजाय क्रमशः 38 और 42 लिखे गए थे, तो सही औसत ज्ञात करें |

The average marks of 40 students was found to be 68. If the marks of two students were incorrectly entered as 48 and 64 instead of 84 and 46 respectively, then what is the correct average? 40 छात्रों के औसत अंक 68 पाए गए | यदि दो छात्रों के अंक भूलवश 84 एवं 46 के बजाय क्रमशः 48 और 64 के रूप में शामिल किये गए हैं, तो सही औसत ज्ञात करें |

The average marks of 45 students was found to be 66. If the marks of two students were incorrectly entered as 28 and 64 instead of 82 and 46 respectively, then what is the correct average? 45 छात्रों के औसत अंक 66 पाए गए | यदि दो छात्रों के अंक 82 और 46 के बजाय भूलवश क्रमशः 28 और 64 लिखे गए थे, तो सही औसत क्या होगा ?

The average of twelve numbers is 55.5. The average of the first four numbers is 53.4 and that of the next four numbers is 54.6. The 10th number is greater than the 9th number by 3 but lesser than the 11th and 12th numbers by 2 and 3, respectively. What is the average of the 10th and the 12th numbers? बारह संख्याओं का औसत 55.5 है | पहली चार संख्याओं का औसत 53.4 है तथा अगली चार संख्याओं का औसत 54.6 है | 10वीं संख्या 9वीं संख्या से 3 अधिक है लेकिन 11वीं और 12वीं संख्याओं से क्रमशः 2 और 3 कम है | 10वीं और 12वीं संख्याओं का औसत ज्ञात करें |

Average of 11 numbers is 32. If the average of first six numbers is 26 and the average of last six numbers is 36 then what is the value of the sixth number? 11 संख्याओं का औसत 32 है | यदि पहली छः संख्याओं का औसत 26 है और अंतिम छः संख्याओं का औसत 36 है, तो छठी संख्या का मान ज्ञात करें |

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 of five consecutive odd numbers is m. If the next three odd numbers are also included, then what is the increase in the average? पाँच लगातार विषम संख्याओं का औसत m है | यदि अगली तीन विषम संख्याओं को भी शामिल कर लिया जाए, तो औसत में कितनी वृद्धि होगी ?

The average of two numbers A and B is 20, that of B and C is 19 and of C and A it is 21. What is the value of A? दो संख्याओं A तथा B का औसत 20, B तथा C का औसत 19 और C तथा A का औसत 21 है। A का मान क्या है?

The average weight of 38 students is 42 kg. It was found that the figure of 46 kg was misread as 26 kg in one of the readings. What is the correct average? (correct to one decimal places) 38 छात्रों का औसत वज़न 42 किलो ग्राम है | यह पाया गया कि 46 किलो ग्राम को भूल-वश 26 किलो ग्राम पढ़ लिया गया था | सही औसत कया है ? ( एक दशमलव स्थान तक )

PINNACLE-AVERAGE-EXERCISE
  1. The average weight of 14 children is 22 kg. If the weight of the teach...

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  2. Average age of 9 men is 45 years. If age of one woman is included, the...

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  3. Average of 50 numbers was calculated as 20 when three numbers, 26, 36 ...

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  4. Average of 12 numbers is 48. If each number is increased by 11, then w...

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  5. What is the average of all the multiples of 6 from 20 to 80? 20 से 8...

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  6. The average of 36, 28, 43, 56, 74, 65, 12 and x is 45. What is the val...

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  7. The average age of a group of 20 men is 30 years. A 50 year old man le...

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  8. The average of six observations is 15. The average of first three amon...

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  9. The average weight of 18 boys in a group is 35 kg. If four new boys of...

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  10. What is the average of the first 15 even numbers starting from 2? 2 ...

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  11. The average of four numbers is 20. If the average of the first two num...

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  12. Set A contains seven numbers and the average of these numbers is 41. S...

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  13. Average of 11 numbers is 32. If the average of first six numbers is 26...

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  14. The average marks of two classes M and N are 25 and 40 respectively an...

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  15. Five years ago, the average age of 4 girls was 7 years. After includin...

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  16. The average of 10 numbers is P and the average of 4 of these numbers i...

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  17. The average marks obtained by a student in 9 subjects is 98. On subseq...

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  18. A party was held for 50 people on their own expenses. Out of them, 48 ...

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  19. The average of 25 number is zero. At most, how many of these numbers c...

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  20. The average of 50 numbers is 75. If the average of first set of 25 num...

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