Van Helsing gets paid by the town to remove all the vampires and werewolves. He gets $5 per vampire and $10 per werewolf. He removes half the vampires and removes 8 werewolves, and earned $105. There were 4 times as many werewolves as vampires. What percentage of the werewolves did he remove? Give the rationale and then the answer.
Let's think step by step. He earns $80 from werewolf removal because 8 x 10 = 80. He earned $25 from vampire removal because 105 - 80 = 25. He removed 5 vampires from town because 25 / 5 = 5. There were 10 vampires because 5 / .5 = 10. There were 40 werewolves because 4 x 10 = 40. The proportion of werewolves that he removed was .2 because 8 / 40 = .2. The percentage of werewolves removed was 20% because 100 x .2 = 20.. The answer is: 20.

Tom spends $250 to buy gems in a game he plays. The game gives 100 gems for each dollar you spend. Since he bought so many gems he got a 20% bonus of more gems. How many gems did he end up with? Give the rationale and then the answer.
Let's think step by step. He bought 250 * 100 = 25000 gems. He got a 25,000 * .2 = 5,000 gem bonus. So he got a total of 25000 + 5000 = 30,000 gems.. The answer is: 30000.

Joseph drives his car at 50 mph for 2.5 hours. Kyle drives his car at 62 mph for 2 hours. How many more miles does Joseph drive than Kyle? Give the rationale and then the answer.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Let's think step by step. Joseph travels for 50 * 2.5 = 125 miles. Kyle travels for 62 * 2 = 124 miles. Joseph drives for 125 - 124 = 1 mile more than Kyle.. The answer is: 1.