allery20 विद्यार्थ्यांची सरासरी 60 गुण आहे आणि 30 विद्यार्थ्यांची सरासरी 70 आहे. एकूण सरासरी किती आहे?
A65
B68
C66
D67
Answer & Solution
Correct answer: C. 66
एकूण बेरीज 1200 आणि 2100 आहे, त्यामुळे 3300 ला 50 विद्यार्थ्यांनी भागल्यास 66 मिळते.
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