In making an alloy, a substance of specific gravity `s_(1)` and mass `m_(1)` is mixed with another substance of specific gravity of the alloy is

Options

A. `(M_(1)+M_(2))//S_(1)S_(2)`
B. `(M_(1)+M_(2))//(M_(1)//S_(1)+M_(2)//S_(2))`
C. `(M_(1)//S_(1))|(M_(1)//S_(2))//(M_(1)+M_(2))`
D. `((M_(1)//S_(1))+(M_(2)//S_(2))//(M_(1)M_(2))`

Answer

B