Question

mean of odd numbers from 111 to 245???​

Answer 1

Answer:

Mean is 178

Step-by-step explanation:

Formula used:

$Mean=\frac{\Sigma{x}}{n}$

clearly 111,113,...............245 forms an A.P

Number of terms in A.P

$n=\frac{l-a}{d}+1$

$n=\frac{245-111}{2}+1$

$n=\frac{132}{2}+1$

$n=66+1$

$n=67$

$111+113+...........+245$

$=\frac{n}{2}[a+l]$

$=\frac{67}{2}[111+245]$

$=\frac{67}{2}[356]$

$=(67)(178)$

Now,

$Mean=\frac{111+113+........+245}{67}$

$Mean=\frac{(67)(178)}{67}$

$Mean=178$

Answer 2

Answer:

mean is 148

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