The average of first 123 odd natural numbers, is:
123
The formula for average of first n odd natural numbers is:
Average = n (because the odd numbers are in AP with common difference 2)
So, average of first 123 odd numbers = 123
| Marks obtained | No. of students |
| 25 | 5 |
| 30 | 6 |
| 35 | 3 |
| 40 | 1 |
The average runs scored by a batsman in 23 matches is 40. In the next 10 matches, the batsman scored an average of 16 runs. Find his average runs scored (rounded off to two decimals) in all the 33 matches.