1.

A batsman in his 12th innings makes a score of 100, and thereby increase his average by 5. The average score after 12th innings is1). 402). 553). 654). 45

Answer»

Let AVERAGE runs of 11 INNINGS = X

∴ Total runs MADE by him in 11 innings = 11x

Score of 12th innings = 100

Average run of 12 innings = x + 5

Total runs of 12 innings = 12(x + 5) = 12x + 60

11x + 100 = 12x + 60

⇒ x = 40Thus, average run after the 12th innings = 40 + 5 = 45


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