12. The average of the following

numbers is 21. 18, 15, X, 22, 31. Find

the value of ‘x’:

# 12. The average of the following

### 2 thoughts on “12. The average of the following<br />numbers is 21. 18, 15, X, 22, 31. Find<br />the value of ‘x’:”

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Step-by-step explanation:18+15+x+22+31

———————- = 21

5

86+x = 21×5

86+x = 105

x= 105-86

x= 19

VARIFIEDANSWER✅✅18+15+x+22+31/5=21

86+x/5=21

86+x=21×5

86+x=105

x=105-86

x=19