[Question]Amy biked 12 miles yesterday. If she biked 3 miles less than twice as far as yesterday, how many miles did she bike in total in the two days?
[Answer]Twice the distance Amy biked yesterday is 12 * 2 = 24 miles. If Amy biked 3 miles less than twice as far as yesterday, she biked 24 - 3 = 21 miles today. The total distance she biked in the two days is 21 + 12 = 33 miles. The answer is 33.

[Question]Jerry works five days a week as a waiter and earns a variable amount of tips every night. The past four nights, he earned $20, $60, $15, and $40. How much does he need to earn tonight if he wants to make an average of $50 in tips per night?
[Answer]The total money Jerry needs to make for 5 days to get $50 per night is 5 nights * $50 / night = $250. His total earnings for the past four days is $20 + $60 + $15 + $40 = $135. So, Jerry needs to earn $250 - $135 = $115 in tips tonight. The answer is 115.

[Question]Tricia is a third of Amilia's age and Amilia is a quarter of Yorick's age. Yorick is twice Eugene's age and Khloe is a third of Eugene's age. Rupert is 10 years older than Khloe but 2 years younger than Vincent who is 22 years old. How old, in years, is Tricia?
[Answer]Rupert is younger than Vincent by 2 years, so he is 22 years old 2 years = 20 years old. Khloe is 10 years younger than Rupert so she is 20 years old 10 years = 10 years old. Eugene is 3 times older than Khloe so he is 10 years old * 3 = 30 years old. Yorick is twice Eugene's age so he is 30 years old * 2 = 60 years old. Amilia is a quarter of Yorick's age so she is 60 years old / 4 = 15 years old. Tricia is a third of Amilia's age so she is 15 years old / 3 = 5 years old. The answer is 5.

[Question]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?
[Answer]
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.