The centre of mass of three particles of...

The centre of mass of three particles of masses 1 kg, 2 kg and 3 kg is at (2,2, 2). The position of the fourth mass of 4 kg to be placed in the system as that the new centre of mass is at (0, 0, 0) is

`(-3, -3, -3)`

`(-3, 3, -3)`

`(2, 3, -3)`

`(2, -2, 3)`

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