Question
span >Average run scored by a batsman in first ‘x’ matches is 75. In next 10 matches he scored runs with an average of 95 so that his overall average increased by 4. Find the value of
x.
Solution
(75x + 10 × 95)/(x + 10) = 79 => 75x + 950 = 79x + 790 => 4x = 160 => x = 40
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