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A body of density d1 is counterpoised b...

A body of density `d_1` is counterpoised by Mg of weights of density `d_2` in air of density d.Then the true mass of the body is

A

M

B

`M (1-d/d_2)`

C

`M (1-d/d_1)`

D

`(M(1-d//d_2))/((1-d//d1))`

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