Question

The Average of three numbers is 20.If two numbers are 16 and 22,the third is

Answer 1

Heya..here is ur answer
let the third no. be x
we know that,
average= sum of all observations/total no. of observations
.........
Average=20
sum= 16+22+x
=38+x
n=3
......
20=38+x/3
20×3=38+x
60=38+x
60-38=x
22=x
.....
therefore the third number is 22...
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Answer 2

Answer:

Average of three numbers = 20

Average = sum of all numbers / total

20 = 16+ 22 + x / 3

60= 38 + x

x = 60 - 38

x = 22

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