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What is the harmonic mean of two numbers whose geometric mean and arithmetic mean is 8 and 5 respectively

Let the harmonic mean and the geometric mean of two positive numbers be in the ratio 4 : 5. The two numbers are in the ratio

If the Arithmetic mean is 34 and geometric mean is 16 then what is greatest number in that series of numbers

The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25% a mean score of 31. The mean score of remaining 55%

The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25% of a mean score of 31. The mean score of remaining 5

The ratio of the harmonic mean to the geometric mean of two positive numbers is 12/13. The number are in the ratio

Geometric mean of 2,4 and 8 is