A cricketer whose bowling average is 12.4 runs per wicket, takes 5 wickets for 26 runs and thereby decreases his average by 0.4. The number of wickets taken by him till the last match was:

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answer is D.

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Detailed Solution

Concept-The number of ticket gates taken by cricket players is as follows X . Then, based on the conditions given in the question, create the cricket player's average equation and formula. Then you can easily solve this equation to find out how many ticket gates the cricket player has taken.
Let N be the number of wickets the bowler took after the match. This is the number of runs the bowler gave after the match.

Average of bowler after match

According to the question, bowlers average after the match

Equating both averages, we get
Question Image

Hence, the correct option is 4.

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