Mobius is the fastest mule in Italy. She can run at a top speed of 13 miles per hour when she is without any load to carry, and she can travel at 11 miles per hour as her top speed when she carries a typical load. If she travels the 143 miles from Florence, Italy to Rome, Italy at top speed while carrying a typical load, then returns to Florence at her usual top speed without carrying a load, how long, in hours, will the trip take if she takes two 30-minute rest stops during each half of the trip? Give the rationale and then the answer.
Let's think step by step. 30 minutes is 30 / 60 = 0.5 hours. Two 30 - minute rest stops take 0.5 * 2 - 1 hour. If she takes two rest stops per each half of the journey, then she takes 2 * 1 = 2 hours in rest time. With a load, at her top speed, she can travel 143 miles in 143 / 11 = 13 hours. Without a load, at her top speed, she can travel 143 miles in 143 / 13 = 11 hours. Thus, the round trip will take 13 + 11 + 2 = 26 hours.. The answer is: 26.

Jason, Ryan, and Jeffery went fishing at the lake. Ryan caught three times the number of fish that Jason caught. Jefferey caught twice the number of fish that Ryan got. If Jeffery caught 60 fish, how many fish did all of them catch in total? Give the rationale and then the answer.
Let's think step by step. Ryan caught 60 / 2 = 30 fish. Jason caught 30 / 3 = 10 fish. So, all of them caught a total of 10 + 30 + 60 = 100 fish.. The answer is: 100.

Jackson had 20 kilograms of meat. He used 1/4 of the meat to make meatballs and used 3 kilograms of meat to make spring rolls. How many kilograms of meat are left? Give the rationale and then the answer.
Let's think step by step. Jackson used 20 x 1 / 4 = 5 kilograms of meat to make meatballs. He had 20 - 5 = 15 kilograms of meat left. So 15 - 3 = 12 kilograms of meat are left.. The answer is: 12.