Question: Al is 25 pounds heavier than Ben. Ben is 16 pounds lighter than Carl. If Ed weighs 146 pounds and is 38 pounds lighter than Al, find the weight of Carl.
Answer: Al weighs 146 + 38 = 184 pounds. Ben weighs 184 - 25 = 159 pounds. Carl weighs 159 + 16 = 175 pounds. The answer is 175.

Question: Stuart is going on a cross-country trip and wants to find the fastest route. On one route the total distance is 1500 miles and the average speed is 75 MPH. On the second trip, the total distance is 750 but the average speed is 25 MPH. How long does his trip take if he goes on the fastest route?
Answer: The first route will take 20 hours because 1,500 / 75 = 20. The second route will take 30 hours because 750 / 25 = 30. The fastest route takes 20 hours because 20 < 30. The answer is 20.

Question: It takes a dog groomer 10 minutes to dry a short-haired dog like a beagle. It takes him twice as long to dry a full-haired, fluffy dog like a german shepherd. One morning, he has 6 short-haired dogs to dry and 9 full-haired dogs to dry. How many hours does it take him to dry all of the dogs?
Answer: It takes 10 minutes to dry the coat of a short - haired dog and twice as long for a full haired dog so they take 10 * 2 = 20 minutes to dry. He had 6 short hair dogs and they took 10 minutes to dry each so they took 6 * 10 = 60 minutes to dry. He had 9 full haired dogs that took 20 minutes to dry each so they took 9 * 20 = 180 minutes to dry. Together is takes him 60 + 180 = 240 minutes to dry all of the dogs. 60 minutes are in 1 hour and he spends 240 minutes on the dogs so he worked for 240 / 60 = 4 hours drying the dogs. The answer is 4.

Question: Carly practices her butterfly stroke for 3 hours a day, 4 days a week, and her backstroke for 2 hours a day, six days a week. How much time does she spend practicing swimming in a month with 4 weeks?
Answer:
First find the total time Carly practices the butterfly stroke in a week: 3 hours / day * 4 days / week = 12 hours / week. Then find the total time Carly practices the backstroke stroke in a week: 2 hours / day * 6 days / week = 12 hours / week. Then add those two amounts of time to find her total practice time each week: 12 hours / week + 12 hours / week = 24 hours / week. Then multiply her weekly practice time by the number of weeks in a month to find her monthly practice time: 24 hours / week * 4 weeks / month = 96 hours / month. The answer is 96.