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CA Foundation doubt

Someone tell me how to solve this question

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Asked by Mohd.3 Jul 2024406 views

4 answers

  1. FAIZAN · 3 Jul 2024

    Harmonic mean formula= n/(1/x¹)+(1/x² )so here n=2 by this information 2/1/500+1/700=583.33

  2. Mohd. · 3 Jul 2024

    Thanku bhai ❣️

  3. Satish · 3 Jul 2024

    Formula of Harmonic mean (Ans-583.333)

  4. Satish · 3 Jul 2024

    2*500*700÷500+700

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