1.

The marks to 10 persons are 40, 60, 50, 20, 30, 40, 50, 50, 10, 20. Find their average marks.1. 372. 473. 274. 35

Answer» Correct Answer - Option 1 : 37

Given:

Marks of 10 persons = 40, 60, 50, 20, 30, 40, 50, 50, 10, 20

Concept:

Average marks = Total marks / Total persons

Solution:

Total marks = 40 + 60 + 50 + 20 + 30 + 40 + 50 + 50 + 10 + 20 = 370

Total number of persons = 10

Average marks = 370/10 = 37


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