Chapter 8, Problem 8.51E

Three odd-shaped blocks of chocolate have the following masses and center-of-mass coordinates: (1) 0.300 kg. (0.200 m, 0.300 m); (2) 0.400 kg. (0.100 m,−0.400 m); (3) 0.200 kg, (−0.300 m, 0.600 m). Find the coordinates of the center of mass of the system of three chocolate blocks.