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If the arithmetic mean of 7, 5, 13, x and 9 be 10, then the value of x is
  • a)
    10
  • b)
    12
  • c)
    16
  • d)
    13
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
If the arithmetic mean of 7, 5, 13, x and 9 be 10, then the value of x...
Given
7, 5, 13, x,  and 9
Formula used
Average = Sum of all observation /Number of observation
Calculation
Average = (7 + 5 + 13 + x + 9)/5
⇒ 10 = (34 + x)/5
⇒ 50 - 34 = x
⇒ 16 = x
∴ Value of x is 16.
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If the arithmetic mean of 7, 5, 13, x and 9 be 10, then the value of x isa)10b)12c)16d)13Correct answer is option 'C'. Can you explain this answer?
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