Question: Silvio was running a race that had 4 parts. The total length of the race was 74.5 kilometers. The first part of the race is 15.5 kilometers long. The second and third parts are each 21.5 kilometers long. How many kilometers is the last part of the race?
Answer: 15.5 + (2 * 21.5) = 58.5 km. 74.5 - 58.5 = 16 kilometers. The last part of the race is 16 kilometers. The answer is 16.

Question: When Jason plays the video game, Duty for Ashes, his mission to slay the dragon hoard requires that he fire his weapon on average every 15 seconds.  And each time he fires his weapon, his power-fire setting allows him to shoot a flame for 5 seconds. On average, how many seconds per minute does Jason shoot flames at the dragon hoard?
Answer: Since he fires his weapon on average every 15 seconds, then in one minute he fires the flamethrower 60 / 15 = 4 times. And since each time he fires his weapon, he shoots flame for 5 seconds, then Jason shoots flames at the dragon hoard a total of 4 * 5 = 20 seconds of every minute. The answer is 20.

Question: John wants to start a zoo. He has 15 snakes. He has twice as many monkeys as he does snakes. He has 5 fewer lions than he does monkeys.  John has 8 more pandas than he does lions. John has 1/3 as many dogs as he does pandas. How many total animals does John have?
Answer: John has 15 snakes * 2 = 30 monkeys. John has 30 monkeys - 5 = 25 lions. John has 25 lions + 8 = 33 pandas. John has 33 pandas / 3 = 11 dogs. John has 15 + 30 + 25 + 33 + 11 = 114 animals. The answer is 114.

Question: Wickham is throwing a huge Christmas party. He invites 30 people. Everyone attends the party, and half of the guests bring a plus one (one other person). He plans to serve a 3-course meal for the guests. If he uses a new plate for every course, how many plates does he need in total for his guests?
Answer:
The number of guests that bring a plus one is 30 / 2 = 15 guests. The total number of guests at the party, including the plus ones, is 30 + 15 = 45 guests. Since there are 3 courses, Wickham will need 45 * 3 = 135 plates. The answer is 135.