The geometric mean of 3 positive numbers a,b and c is 3 and the geometric mean of 3 other positive numbers d,e,f is 4.Also,atleast 3 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 among 6 numbers?
- M>2*1.732
- M>3.5
- M>=3.5
- It is not possible to set any precise lower limit for m