The geometric mean of three positive numbers a, b, c is 3 and the geometric mean of another three positive numbers d, e, f is 4. Also, at least three elements in the set {a, b, c, d, e, f} are distinct.
Which one of the following inequalities gives the best information about M, the arithmetic mean of the six numbers?
Mathematics
2015
CDS Elementary Mathematics 2015
CDS 2015
Options
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