Correct Answer - Option 3 : 41
Given:
Runs scored by batsman in 12th innings = 85 runs
Batting average increases by 4
Formula used:
Total runs scored = Average × Number of innings
Calculation:
Let average runs after 11th innings be n
Batting average after 12th innings = (n + 4)
Total run in 11 innings = 11n
According to the question
⇒ (11n + 85) = 12(n + 4)
⇒ 11n + 85 = 12n + 48
⇒ n = 37
Average after 12th innings = (n + 4)
⇒ 37 + 4 = 41
∴ The batting average after 12th innings is 41