Home
Class 14
MATHS
In an examination, the average of marks ...

In an examination, the average of marks was found to be 50. For deducting marks for computational errors, the marks of 100 candidates had to be changed from 90 to 60 each and so the average of marks came down to 45. The total number of candidates, who appeared at the examination, was :

Text Solution

Verified by Experts

The correct Answer is:
600
Promotional Banner

Topper's Solved these Questions

  • ALGEBRA THEORY

    ADVANCED MATHS BY ABHINAY MATHS ENGLISH|Exercise Example |173 Videos

  • BOATS AND STREAM

    ADVANCED MATHS BY ABHINAY MATHS ENGLISH|Exercise QUESTIONS |39 Videos

Similar Questions

Explore conceptually related problems

In a competitive examination, the average marks obtained was 45. it was later discovered that there was some error in computerisation and the marks of 90 candidates had to be changed from 80 to 50 and the average came down to 40 marks. The total number of candidates who appeared in examination is

In an exam, the average marks obtained by the students was found to be 60. After omission of computational errors, the average marks of some 100 candidates had to be changed from 60 to 30 and the average with respect to all the examinees came down to 45 marks. The total number of candidates who took the exam, was

In an exam, the average was found to be x marks. After deducting computational error, the average marks of 94 candidates got reduced from 84 to 64. The average thus came down by 18.8 marks. The numbers of candidates who took the exam were:

The average marks obtained by 240 students in a certain examination is 35. If the average marks of the passed candidates are 39 and that of the failed candidates are 15, then the total number of candidates who passed the examination is:

The average of marks obtained by 120 candidates was 35. if the average of the passed candidates was 39 and that of the failed candidates was 15, then the number of those candidates who passed the examination was

The average of marks obtained by 125 candidates in a certain examination is 29. If the average marks of passed candidates is 36 and that of the failed candidates is 11, what is the number of candidates who failed the examination ?

The average of marks obtained by 120 candidates in a certain examination is 35. If the average marks of passed candidates is 39 and that of the failed candidates is 15, what is the number of candidates who passed the examination?

ADVANCED MATHS BY ABHINAY MATHS ENGLISH-AVERAGE-QUESTIONS
  1. A student calculated the average of 10, three digit number. But due to...

    Text Solution

    |

  2. In an exam, the average marks obtained by the students was found to be...

    Text Solution

    |

  3. In an examination, the average of marks was found to be 50. For deduct...

    Text Solution

    |

  4. Find average 1, 2,2 3,3,3 4,4,4,4, ……… 7,7,7,7,7,7,7.

    Text Solution

    |

  5. Find the average of 1^(3) + 2^(3) + 3^(3) + ……. 100^(3)

    Text Solution

    |

  6. Average of 5 consecutive number is 23. Find the largest number

    Text Solution

    |

  7. Average of 6 consecutive odd number is 40. Find the largest number.

    Text Solution

    |

  8. If the average of 116 consecutive even number is 201. Find the sum o...

    Text Solution

    |

  9. If the average of 7 consecutive even number is 44. Find the differen...

    Text Solution

    |

  10. If the average of 17 consecutive even number is 143. Find the differen...

    Text Solution

    |

  11. The weight of 5 members is measured in sequence and each time the ave...

    Text Solution

    |

  12. Radha was asked to find the average of N consecutive natural numbers s...

    Text Solution

    |

  13. If the average of 5 consecutive number starting with m is n. Find the...

    Text Solution

    |

  14. a, b, c, d, e are five consecutive odd number. Find the average of all...

    Text Solution

    |

  15. Average of 13 number is 52. Average of first 7 number is 51. Average o...

    Text Solution

    |

  16. Average of 17 number is 63. Average of first 9 number is 64. Average o...

    Text Solution

    |

  17. Average age of 17 student of a class is 16 years. If a new student joi...

    Text Solution

    |

  18. Average weight of 17 players of a team is 22 kg. If a player leave th...

    Text Solution

    |

  19. There is some average of 11 innings of a batsman. He scores 90 runs in...

    Text Solution

    |

  20. There is some average of 8 innings of a batsman. He scores 100 runs in...

    Text Solution

    |