For 9 innings, Roman has an average of 65 runs. In the tenth inning, he scores 200 runs, thus increasing his average . His average increased by

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Solution

Total score for 65 innings = 65*9 = 585
Total score after 10th innings = 585 + 200 = 785
So, the new average is 785/10 = 78.5
So, the increment is of 13.5

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For 9 innings, Roman has an average of 65 runs. In the tenth inning, he scores 200 runs, thus increasing his average . His average increased by

Total score for 65 innings = 65*9 = 585Total score after 10th innings = 585 + 200 = 785So, the new average is 785/10 = 78.5So, the increment is of 13.5

Total score for 65 innings = 65*9 = 585
Total score after 10th innings = 585 + 200 = 785
So, the new average is 785/10 = 78.5
So, the increment is of 13.5