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Question

If the ratio of harmonic mean of two numbers to their geometric mean is 12 : 13, find the ratio of the numbers.

A
49 or 94
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B
23 or 32
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C
25 or 52
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D
None of these
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Solution

The correct option is A 49 or 94
Harmonic mean of two numbers = 2aba+b
Geometric mean of two numbers = ab
2aba+b = 1213
abab+1 = 613
Solve using options. Clearly, option (a) satisfies. Hence, option (a) is the answer.

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