MBA
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A sequence x1,x2,x3 Is said to be in harmonic progression if the reciprocals 1/x1,1/x2,1/x3 are in arithmetic progression. The 5th and 7th term for harmonic progression are 30 and 50 respectively what is difference between 6th and 4th term ? 1) 12.5 2) 20 3) none of them 4) 100
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