James gets a cable program. The first 100 channels cost $100 and the next 100 channels cost half that much. He splits it evenly with his roommate. How much did he pay? Think carefully first, then make a decision:
The next 100 channels cost 100 / 2 = $50. So the total cost is 100 + 50 = $150. So he pays 150 / 2 = $75. So, the answer is 75.