A cube of edge length $10 \,cm$ is just balanced at the interface of two liquids $A$ and $B$ as shown in figure. If $A$ and $B$ has specific gravity $0.6$ and $0.4$ respectively, then mass of cube is ................ $g$

212544-q

  • A

    $240$

  • B

    $360$

  • C

    $480$

  • D

    $540$

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