The centre of mass of a system of particles is at the origin. Which of the following statement is incorrect . The number of particle to the righ of the origin is equal to the number of particles to the left The total mass of the particles to the right of the origin is same as the total mass to the left of the origin The number of particles on X-axis should be equal to the number of particles on Y-axis If there is a particle on the positive X-axis, there must be at least one particle on the negative X-axis.

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