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A batsman has a certain average runs for 15 innings. In the 16th inning he made a score of 60 runs and thereby decrease in average by 4. His average after 16th inning is :1). 1272). 1453). 1204). 210 |
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Answer» LET the batsman’s AVERAGE runs for 15 innings be x. Then, the TOTAL runs scored by batsman in 15 innings = 15x Since, he scored 60 runs in his 16th inning Total runs scored by batsman in 16 innings = 15x + 60 Thus, according to question NEW average for 16 innings = (x - 4) runs Therefore, x - 4 = (15x + 60)/16 ⇒16(x - 4) = 15x + 60 ⇒16x - 64 = 15x + 60 ∴ x = 124 ∴ New average for 16th innings = (x - 4) runs = 124 - 4 = 120 runs. |
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