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Sticky Note
The average of five numbers 2, 7, 9, 10, x is 5. Find the value of x.
  1. -5
  2. -3
  3. 2
  4. 5
Explanation

Average = Sum of numbers ÷ Number of numbers

Related MCQs

The average of 10 numbers was calculated as 48. It was later discovered that while calculating the average, one number, 82, was incorrectly entered as 28. What is the correct average of these numbers?
  1. 42.6
  2. 48.5
  3. 53.4
  4. None of these
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The average of 10 students is 80. The average becomes 85 after adding 5 more students. What is the total marks of the 5 new students?
  1. 425
  2. 475
  3. 500
  4. None of these
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The mean of six numbers is 18. If another number 25 is added to these six numbers, what will be the new mean?
  1. 19
  2. 18
  3. 17
  4. None of these
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If the ages of 3 persons are 17, 16, and 12, and another person is added making the average age 20, what is the age of the new person?
  1. 40
  2. 30
  3. 35
  4. None of these
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What is the Arithmetic Mean of the numbers 10, 20, 30, 40, and 50?
  1. 30
  2. 25
  3. 35
  4. None of these
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