Three containes of the same volume contain three different gases. The masses of the molecules are `m_(1), m_(2)` and `m_(3)` and the number of molecules in their respective containers are `N_(1), N_(2)` and `N_(3)`. The gas pressure in the containers are `P_(1), P_(2)` and `P_(3)` respectively. All the gases are now mixed and put in one of the containers. The pressure `P` of mixture will be

Options

A. `Plt(P_1+P_2+P_3)`
B. `P=(P_1+P_2+P_3_/3`
C. `P=P_1+P_2+P_3`
D. `Pgt(P_1+P_2=P_3)`