Correct Answer - Option 2 : 41
Given:
The score of 12th innings = 63
The average increase = 2
Formula used:
Total score = average score × number of innings
Calculation:
Let the average score be x
⇒ Total score = 12x ----(1)
According to the question
⇒ The average of 11 innings = (x - 2)
⇒ Total score = (x - 2) × 11 + 63 ----(2)
On comparing eq (1) and eq (2), we get
(x - 2) × 11 + 63 = 12x
⇒ x = 63 - 22 = 41
∴ The average of his score after 12th innings is 41.