Question

find the average of first 7 multiples of 15​

Answer 1

Step-by-step explanation:

15,30,45,60,75,90,105,120,135,150,165....

this is the answer for your question

Answer 2

The average of first 7 multiple of 15 is 60

Given :

First 7 multiple of 15

To find :

The average of first 7 multiple of 15

Solution :

Step 1 of 2 :

Calculate Sum of the observations

First 7 multiple of 15 are 15, 30, 45, 60, 75, 90, 105

Number of observations = 7

Sum of the observations

= 15 + 30 + 45 + 60 + 75 + 90 + 105

= 420

Step 2 of 2 :

Calculate the average

The required average

$\displaystyle \sf{ = \frac{Sum \: of \: the \: observations}{Number \: of \: observations} }$

$\displaystyle \sf{ = \frac{420}{7} }$

$\displaystyle \sf{ = 60}$

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