Math, asked by pranjal44, 1 year ago

Find the average of 12,15,18,21,24 please answer in brief

Answers

Answered by shuklapriyansh

AVERAGE = SUM OF ALL NOS./ NO. OF ALL QUANTITIES
= 12 + 15 + 18 + 21 + 24 / 5
= 90 / 5
= 18
REGARDS
PRIYANSH

pranjal44: Hi Priyansh can u explain why /5

neerajdhanik1oznvt1: because total no. is 5 terms

pranjal44: but when 90/5 how can it be 18

pranjal44: Reply

neerajdhanik1oznvt1: average = sum of all numbers / number of terms

neerajdhanik1oznvt1: just add them all and devided by number of terms

neerajdhanik1oznvt1: sum = 90 and no. of terms= 5 so 90 devided by 5 is 18

pranjal44: thanks

Answered by pulakmath007

The average of 12 , 15 , 18 , 21 , 24 is 18

Given :

The the observations 12 , 15 , 18 , 21 , 24

To find :

The average

Solution :

Step 1 of 3 :

Write down the given observations

Here the given observations are 12 , 15 , 18 , 21 , 24

Step 2 of 3 :

Find Sum of the observations

Number of observations = 5

Sum of the observations

= 12 + 15 + 18 + 21 + 24

= 90

Step 3 of 3 :

Find the average

The required average

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

$\displaystyle \sf{ = \frac{90}{5} }$

$\displaystyle \sf{ = 18}$

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