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If the arithmetic mean of 1,2,3,4,5,6,x, 16 and 18 is 8.0, find the value of x?

If the arithmetic mean of 1,2,3,4,5,6,x, 16 and 18 is 8.0, find the value of x?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A 7.0
  • B 6.0
  • C 8.5
  • D 8.0
Correct Answer: Option A
Explanation:

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