The average of 11 results is 50. If the average of the first 6 results is 49 and the average of the last 6 results is 52, calculate the 6th result.
A
50
B
52
C
56
D
60
Correct Option:
C
Explanation
The total sum of 11 results is 11 × 50 = 550. The sum of the first 6 is 294, and the sum of the last 6 is 312. Adding these gives 606, which counts the 6th result twice. Thus, 606 − 550 = 56.
