Question
Average run scored by a batsman in first ‘x’ matches
is 42. In next 13 matches he scored runs with an average of 62 so that his overall average increased by 4. Find the value of x.Solution
(42x + 13 × 62)/(x + 13) = 46  => 42x + 806 = 46x + 598 => 4x = 208 => x = 52
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