Mathematics · Averages
The average age of students in a class was 15 years. When 5 new boys whose average age was 12 years 6 months were admitted to the class, the overall average age was reduced by 6 months. How many students were there in the class originally?
- 116
- 218
- 320✓
- 415
Correct answer
20
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Averages?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Averages