A log of wood of mass $120 Kg$  floats in water. The weight that can be put on the raft to make it just sink, should be ....... $Kg$ (density of wood = $600 Kg/m^3$)

  • A

    $80 $

  • B

    $50 $

  • C

    $60 $

  • D

    $30 $

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