CUET Preparation Today
What will be the average of the odd numbers from 21 to 81? |
61 51 79 29 |
51 |
The AP series of odd numbers is : 21 + 23 + 25...............+ 79 + 81 Average of the series = \(\frac{First\; term\; +\; Last \;Term }{2}\) = \(\frac{21 + 81 }{2}\) = \(\frac{102 }{2}\) = 51 |
