batsman in his 12 th inning makes a score of 63 runs and thereby increases his average score by 2. His average after the 12 th inning will be : (a) `65` (b) `39` (c) `41` (d) `53`

batsman in his 12 th inning makes a score of 63 runs and thereby incre

1.	batsman in his 12 th inning makes a score of 63 runs and thereby increases his average score by 2. His average after the 12 th inning will be : (a) `65` (b) `39` (c) `41` (d) `53`
Answer» Let the average score of 12 innings be x. Then , the average score of 11 innings = (x -2) Total score of 12 innings = 12x. Total score of 11 innings = 11 (x-2) = (11x -22) Score of the 12th innings = ( total score of 12 innings)- ( totl score of 11 innings ) = [12x -(11 x-22)] = (x+22) x +22 = 63 ` Rightarrow` x =41 Hence, the average score after the 12th innings is 41.

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batsman in his 12 th inning makes a score of 63 runs and thereby increases his average score by 2. His average after the 12 th inning will be : (a) `65` (b) `39` (c) `41` (d) `53`

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