James gets 3 parking tickets. The first 2 cost $150 each and the third cost 1/3 as much as one of these. His roommate agrees to pay half the cost. How much money does he have left if he had $500 in the bank?
Step-by-step reasoning:
325
The third ticket cost $150 / 3 = $50.

So the tickets cost $150 * 2 + $50 = $350.

That means he paid $350 / 2 = $175.

So he had $500 - $175 = $325 left over.

.

Therefore, the answer is 325