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March 27, 2017

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a guy bought some fish from a farm.during 1st week 1/8 of fish died ,in next 2 weeks 3/5 of the remaining died.what fraction of the original fish died in last three weeks

  • arithmetic - ,

    i need to know the procedure and formula in detail ty

  • arithmetic - ,

    After the first 1/8 died, only 7/8 were left
    3/5 of those died, meaning 3/5 * 7/8 of the original number died

    1/8 = 5/40
    3/5 * 7/8 = 21/40

    So, 26/40 = 13/20 of the fish died

  • arithmetic - ,

    Never buy fish from a farm. Farmed fish is yuucky. Good fish comes from the ocean.

    lets start with 40 fish
    the first week 5 die so we have 35 which is 7/8 of original

    after first week 7/8 or 35 remain

    then in weeks two and three 3/5* 35 = 21 die so we are left with 35 -21 = 14 fish

    so in those first three weeks 26 died
    26/40 = 13/20

  • arithmetic - ,

    ty

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