-
The average of 100 numbers is 44. The average of these 100 numbers and 4 other new numbers is 50. The average of the four new numbers will be
-
- 800
- 200
- 176
- 24
- 800
Correct Option: B
Sum of 4 new numbers = 50 ×104 – 100 × 44
Sum of 4 new numbers = 5200 – 4400 = 800
| ∴ Average = | = 200 | |
| 4 |
Second method to find the required average ,
Here, N = 100, T = 44 n = 4, y = 50 – 44 = 6
| ∴ Average of new numbers = T+ |  | + 1 |  | t | |
| n |
| Average of new numbers = 44 + | | + 1 | | × 6 | |
| 4 |
Average of new numbers = 44 + 26 × 6 = 44 + 156 = 200
