A man whose bowling average is 12.4 takes 5 wicket for 26 runs and thereby decreases his average by 0.4. The number of wickets taken by him, before his last match is?
Correct Answer: 85
Explanation:
Let the number of wickets taken before the last match = y
Bowler's overall average = total run scored / total wicket taken by bowler
Then, (12.4y + 26 ) / (y + 5) = 12
∴ x = 85
