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Question
A cricketer has a certain average for 9 innings. In the 10th innings he scores 100 runs, thus increasing his average by 8 runs. His new average is :
20
24
28
32
35
ANSWER : 3
Descrption
<p>Let, initial average = x</p> <p>So, total runs = 9x</p> <p>And total runs scored in 10 innings = 9x + 100</p> <p>So, new average = (9x + 100)/10</p> <p>Since average increase by 8</p> <p>ATQ,</p> <p>x + 8 = (9x + 100)/10</p> <p>10x + 80 = 9x + 100</p> <p>x = 20</p> <p>New average 20 + 8 = 28 (Ans)</p>
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