Question
The average of runs of a cricket player of 10 innings
was 42. How many runs must he make in his next inning so as to increase his average of runs by 6?Solution
Let the batsman make x runs. Total runs in 10 innings = 10 × 42 = 420 => (420 + x)/11 = 42 + 6 => 420 + x = 48 × 11 => x = 528 – 420 = 108
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