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Aptitude - Average - Discussion

Discussion Forum : Average - General Questions (Q.No. 14)
Average
14.
If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is:
53.33
54.68
55
None of these
Answer: Option
Explanation:
Required average
= 55 x 50 + 60 x 55 + 45 x 60
55 + 60 + 45
= 2750 + 3300 + 2700
160
= 8750
160
= 54.68
Discussion:
21 comments Page 3 of 3.
Swa said:   7 years ago
Thank you @Sadhya.
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