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Let the average of three numbers be 16. If two of the numbers are 8 and 10, what is the remaining number?
  • a)
    -30
  • b)
    18
  • c)
    12
  • d)
    30
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Let the average of three numbers be 16. If two of the numbers are 8 an...
Concept:
Calculation:
Here n = 3. Let's say that the third number is x.
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Community Answer
Let the average of three numbers be 16. If two of the numbers are 8 an...
Calculation to Find the Remaining Number:
1. Let's denote the three numbers as x, 8, and 10. According to the given information, the average of the three numbers is 16.
2. Therefore, we can write the equation for the average as:
(x + 8 + 10) / 3 = 16
(x + 18) / 3 = 16
x + 18 = 48
x = 48 - 18
x = 30

Finding the Remaining Number:
3. The remaining number is x, which we have calculated to be 30.
4. Hence, the remaining number is 30.
5. Therefore, the correct answer is option 'D' - 30.
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