The average of three numbers is 36. The average of two of these numbers is 48. What is the third number?
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average of three numbers is 36 so the sum of three numbers is
36×3=108
the sum of two numbers is 48 so the sum of two numbers is
48×2=96
third number =108-96
=12
36×3=108
the sum of two numbers is 48 so the sum of two numbers is
48×2=96
third number =108-96
=12
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