Question

the avg score of Rahul dravid in a certain number of innings is 43.he then played another 8 innings in which he scored 1,22,67,39,48,69,2.what is the new avg of dravid after those 8 innings​

Answer 1

His new average score is 37.

Step-by-step explanation:

The average score of Rahul dravid in a certain number of innings = 43

He played another 8 innings in which he scored  :

1, 22, 67, 39, 48, 69, 2

Average of another 8 innings = $\frac{1+22+67+39+48+69+2}{8}=\frac{248}{8}$

                                                                                    = 31

His new average score after those 8 innings = $\frac{43+31}{2}$

                                                                           = $\frac{74}{2}$

                                                                           = 37

His new average score is 37.

Learn more about average : https://brainly.in/question/2055594

Answer 2

$Average \: score \: of \: Rahul \:dravid \: in \\a \: certain : number \: of \:innings ( \overline {x}_{1})= 43 \: ---(1)$

$Scores \: of \: another \: 8 \: innings \:are \\1,22,67,39,48,69\:and \:2$

$\boxed { \pink { Average = \frac{Sum \:of \:the \: scores }{Number \:of \: innings }}}$

$Average ( \overline {x}_{2}) = \frac{1+22+67+39+48+69+2}{8}\\= \frac{248}{8}\\= 31 \: ----(2)$

$Now ,\red { New \: Average } = avg \: of \: ( \overline {x}_{1}) \: and \: ( \overline {x}_{2})\\= \frac{43+31}{2}\\= \frac{74}{2}\\= 37$

Therefore.,

$\red {New \: Average} \green { = 37 }$

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