# Averages

Average: How to calculate Average, Average Formula, Weighted average, Mean Average, Average Questions with Solutions

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## Online Aptitude Questions with Answers on Averages

Q11. **The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then the weight of B is:**

1.  17
2.  20
3.  26
4.  31

Solution : 31
Q12. **The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.**

1.  47.55 kg
2.  48 kg
3.  48.55 kg
4.  49.25 kg

Solution : 48.55 kg
Q13. **A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is**

1.  250
2.  276
3.  280
4.  285

Solution : 285
Q14. **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:**

1.  53.33
2.  54.68
3.  55
4.  None of these

Solution : 54.68

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Q15. **A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half (1/2). The number of pupils in the class is**

1.  10
2.  20
3.  40
4.  73

Solution : 40
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