# 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

Q51. **Find the average of the first 20 natural numbers?**

1.  10
2.  11.5
3.  12
4.  10.5

Solution : 10.5
Q52. **The average of 13 numbers is 60. Average of the first 7 of them is 57 and that of the last 7 is 61. Find the 8th number?**

1.  46
2.  32
3.  68
4.  51

Solution : 46
Q53. **A batsman makes a score of 64 runs in the 16th innings and thus increased his average by 3. Find his average after the 16th inning?**

1.  17
2.  29
3.  18
4.  19

Solution : 19
Q54. **The average marks of a class of 30 students is 40 and that of another class of 50 students is 60. Find the average marks of all the students?**

1.  50
2.  47.5
3.  59
4.  52.5

Solution : 52.5

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Q55. **The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months February, March, April and May is Rs.8500. If his salary for the month of May is Rs.6500, find his salary for the month of January?**

1.  3000
2.  2500
3.  4500
4.  5000

Solution : 4500
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