Come up with a question and reasoning that would justify this answer: 11
Question and rationale: The question is: It takes 7 years for an apple tree to bear fruit. If Lydia planted a tree when she was 4 years old and is now 9 years old, how old would she be when she gets to eat an apple from her tree for the first time?
Step-by-step reasoning process: The tree has been planted for 9 - 4 = 5 years. It will take another 7 - 5 = 2 years for it to bear fruit. Lydia will be 9 + 2 = 11 years old.

Come up with a question and reasoning that would justify this answer: 17
Question and rationale: The question is: Sadie, Ariana and Sarah are running a relay race. Each part of the race is a different length and covers different terrain. It takes Sadie 2 hours to run through the forest at an average speed of 3 miles per hour. Ariana sprints across the open field on her section at 6 miles per hour for half an hour. If Sarah runs along the beach at four miles per hour and their total time for the race is four and half hours, what is the total distance of the race?
Step-by-step reasoning process: Sadie ran for 3 miles / hour * 2 hour = 6 miles. Ariana covered a distance of 6 miles / hour * (1 / 2) hour = 3 miles. Sarah ran for 4.5 hours – 2 hours – 0.5 hours = 2 hours. In this time, Sarah traveled a distance of 4 miles / hour * 2 hours = 8 miles. The total distance for the race was 6 miles + 3 miles + 8 miles = 17 miles.

Come up with a question and reasoning that would justify this answer: 39
Question and rationale: The question is: At the feline sanctuary, there were 12 lions, 14 tigers, and several cougars. If there were half as many cougars as lions and tigers combined, then what was the total number of big cats at the feline sanctuary?
Step-by-step reasoning process: Half as many cougars as lions and tigers combined is (12 + 14) / 2 = 13. Then the total number of big cats at the feline sanctuary is 12 + 14 + 13 = 39.

Come up with a question and reasoning that would justify this answer: 15
Question and rationale:
The question is: Hannah is making banana bread. She needs to use 3 cups of flour for every cup of banana mush. It takes 4 bananas to make one cup of mush. If Hannah uses 20 bananas, how many cups of flour should she use?
Step-by-step reasoning process: First find the number of cups of banana mush Hannah gets: 20 bananas / 4 bananas / cup = 5 cups. Then multiply the number of cups of mush by the ratio of flour to mush to find the number of cups of flour: 5 cups mush * 3 cups flour / 1 cup mush = 15 cups flour.