A batsman makes a score of $87$ runs in the $17$ th inning and thus increases his average by $3$ . Find his average after the $17$ th inning.

42

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39

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Solution

The correct option is B $39$
Let the average after $17$ th inning $= x$
Then average after $16$ th inning $= (x - 3)$
$∴$ $16 (x - 3) + 87 = 17 x$
or $x = (87 - 48) = 39$

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A batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3. Find his average after the 17th inning.

The correct option is B 39Let the average after 17th inning=xThen average after 16th inning=(x−3)∴ 16(x−3)+87=17xor x=(87−48)=39

A batsman makes a score of $87$ runs in the $17$ th inning and thus increases his average by $3$ . Find his average after the $17$ th inning.

The correct option is B $39$
Let the average after $17$ th inning $= x$
Then average after $16$ th inning $= (x - 3)$
$∴$ $16 (x - 3) + 87 = 17 x$
or $x = (87 - 48) = 39$