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A man whose bowling average is 12.4 take...

A man whose bowling average is 12.4 takes 5 wickets for 26 runs and thereby decreases his average by 0.4.Find the number of wickets taken byhim before his last match.

Text Solution

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Let number of wickets before last match=x
`((12>4*x+26)/(x+5))=(12.4-0.4)`
`12.4x+26=12(x+5)`
`0.4x=60-26=34`
`x=85`.
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