Question

1) find the mean of following numbers. 25, 30, 27, 23, 25

2) substract second polynomial from the first
$5x ^{2} - 2x + 9 \: \: \: \: \: \: \: \: \: \: \: \: \: \: 3x {}^{2} + 5x - 7$
3) Mr. sawant paid RS. 31,500 income tax then compute 2% education cess on it.​

Answer 1

Answer:

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Answer 2

$\huge{\underline{\underline{\huge{\bold{AnsweR \: :-}}}}}$

$\large\sf\color{blue}{mean = }\large\sf\color{red}{ \frac{sum \: of \: the \: terms}{no. \: of \: the \: terms} }$

Sum of the terms = 130

Number of the terms = 5

$\large\sf\color{blue}{mean = \:}\large\sf\color{red}{ \frac{130}{5} }$

$\large\sf\color{blue}{mean =\: }\large\sf\color{red}{ \frac{130}{5} }$

$\large\sf\color{blue}{\frac{130}{5} = \:}\large\sf\color{red}{ 26 }$

Therefore, mean = 26