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In a tuition class, students got 80, 70, 74, 85, 88, 92, and 71 percentage of marks. The average percentage marks got by class is:
1. 82
2. 80
3. 78
4. 81

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Correct Answer - Option 2 : 80

Formula used:

Average = Sum of the quantities/The number of the quantities

Calculation:

∴ Average percentage marks of the tution class= (80 + 70 + 74 + 85 + 88 + 92 + 71)/7

= 560/7

= 80

∴ Average percentage marks of the tuition class is 80 percentage.

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