Mathematics · Average
The average marks of the students of class A is 96. Some students of class A are transferred to class B, and an equal number of students are transferred from B to A whose average marks are 48. As a result, the average marks of the students of class A becomes 80. What fraction of the students of class A were transferred?
- 115
- 213✓
- 312
- 414
Correct answer
13
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