If the origin is the centroid of the triangle PQR with vertices P 2a 2 6 Q ndash 4 3b ndash 10 and R...........

If the origin is the centroid of the triangle PQR with vertices P (2a, 2, 6), Q (– 4, 3b, –10) and R(8, 14, 2c), then find the values of a, b and c. (5 MARKS)

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