the mean of three numbers is 12 two of the number are 9and 14 what is the third number
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We know Average = sum of numbers/no. of numbers
Sum of numbers = average × no. of numbers
Sum of three numbers = 12 × 3 = 36
Sum of first two numbers = 15 + 10 = 25
The third number = sum of three numbers - sum of two numbers
Third number = 36 - 25 = 11
Thus, the third number is 11
Answer the third number is 11
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