Mathematics · Averages
If the average marks of three sections of Class IX, having 25, 35, and 40 students respectively, are 60, 70, and 80, then the average marks of all the students of Class IX combined is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 172
- 270.5
- 371.5✓
- 475
Correct answer
71.5
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