Final answer:
The tension in the rope with boxes suspended on each side, each weighing 50 N, is 50 N.
Step-by-step explanation:
If two boxes are suspended from a rope over a pulley and each box has a weight of 50 N, the tension in the rope must support the weight of one of the boxes at each side of the pulley. Since the system is in balance, and we're ignoring the mass of the rope and any friction from the pulley, the tension would be the same as the weight of one box. Therefore, the tension in the rope is 50 N.