Home
Class 11
ECONOMICS
The average marks of 39 students of a cl...

The average marks of 39 students of a class is 50. The marks obtained by 40th student are 39 more than the average marks of all the 40 student are 39 more than the average marks of all the 40 students. Find the mean marks of all the 40 students.

Promotional Banner

Similar Questions

Explore conceptually related problems

The average marks of 30 students in a class was 80. After two students left out of the class, the average marks of the remaining students was 82. Then the average marks of the two left out students is

The average marks obtained by the students in a class are 43. If the average marks obtained by 25 boys are 40 and the average marks obtained by the girl students are 48, then what is the number of girl students in the class?

In a class of 15 students, the total marks obtained by all the students in a test is 600. Find the average mark of the class.

The average marks of 10 students is 30 if 6 marks is added with each students' marks.Then find the new average.

What are the average marks obtained by all the students together in Science ?

Average marks obtained by 9 students in one row of a class is 45. One student with 35 marks exchanges his seat with a student securing 48 marks. What is the average marks of these 9 students of this row?

Recommended Questions
  1. The average marks of 39 students of a class is 50. The marks obtained ...

    Text Solution

    |

  2. प्रत्यावर्ती परिपथ के लिए औसत शक्ति का व्यंजक प्राप्त कीजिए तथा...

    Text Solution

    |

  3. एक कक्षा के छात्रों को पंक्ति में खड़ा किया जाता है। यदि प्रत्येक पंक्...

    Text Solution

    |

  4. तीन अका की एक संख्या के अंकों का योग 17 है। मध्य का अंक शेष दो अंकों क...

    Text Solution

    |

  5. एक परीक्षा में पास होने वाले तथा पेल होने वालो का अनुपात 3 : 1 था। यदि...

    Text Solution

    |

  6. 40 बच्चों की एक कक्षा में लड़कियों और लड़कों का अनुपात 2 : 3 हैं। 5 नव...

    Text Solution

    |

  7. एक आयताकार बाग , जिसकी लम्बाई , चौडाई से 4 अधिक है , का अर्धपरिमा...

    Text Solution

    |

  8. समस्याओ में रैखिक समीकरणो के युग्म बनाइए और अनके हल ( यदि उनक...

    Text Solution

    |

  9. एक मित्र दूसरे से कहता है कि 'यदि मुझे एक सौ दे दो, तो मैं आपसे दो गुन...

    Text Solution

    |