aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • Average
  • The average marks of 8 students in a group are 65. Three ...
Multiple choice

The average marks of 8 students in a group are 65. Three of them scored 75, 65 and 50 marks. What are the average marks of the remaining 5 students?

  1. 330

  2. 50

  3. 66

  4. 1000

  5. 625

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sum of remaining 5 numbers = 8 x 65 - (75 + 65 + 50) = 330 The average of remaining 5 numbers = 330/5 = 66

Keep practicing — related questions

  • The lateral surface area of a cylinder is 220 sq. cm with height 7 cm. Its volume is
  • The average marks of 22 students in section A of class 9 are 52, that of 23 students of section B are 50 an...
  • Which three are methods of the Object class? 1. notify(); 2. notifyAll(); 3. isInterrupted(); 4. synchroniz...
  • When a man weighing 75 kg is replaced by another man in a group of 20 persons, the average weight decreases...
  • The average of 15 numbers is 26.2. If the average of first 8 numbers is 27.875 and the average of last 8 nu...
  • Miss Gayatri's class has 12 girls and 20 boys. She wants to divide the students into groups so that, every ...
  • A teachers tries to involve her students in many group based activities such as group discussion, group pro...
  • The average of 9 quantities is 21 and the average of 6 of them is 22. What is the average of the remaining ...
Play the full quiz 🎤 Practise this topic out loud

Practice this chapter

  • Averages (1527 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy