Jeff orders a Halloween costume. He has to put in a 10% deposit and then pay the rest when he picks it up. The costume is 40% more expensive than last year's costume, which cost $250. How much did he pay when picking it up, in dollars?
Thoughts? Step-by-step reasoning:
It cost 250 * .4 = $100 more than his old costume. So it cost 250 + 100 = $350. He left a 350 * .1 = $35 deposit. So he had to pay 350 - 35 = $315.
Thus, the answer is 315.