Come up with a question and reasoning that would justify [45] as the answer.
The question is: Fran baked 50 red macaroons and 40 green macarons. How many macaroons will remain if Fran ate 15 green macaroons and twice as many red macaroons as green macaroons?
Reasoning: After eating 15 green macaroons, the number is reduced to 40 green macaroons - 15 green macaroons = 25 green macaroons. If Fran ate 15 green macaroons, he also ate 2 red / green * 15 green macaroons = 30 red macaroons. The total number of red macaroons remaining is 50 red macaroons - 30 red macaroons = 20 red macaroons. The total number of macaroons Fran has left are 20 macaroons + 25 macaroons = 45 macaroons.

Come up with a question and reasoning that would justify [6] as the answer.
The question is: A 26-mile circular marathon has four checkpoints inside it. The first is one mile from the start line, and the last checkpoint is one mile from the finish line. The checkpoints have equal spacing between them. How many miles apart are each of the consecutive checkpoints between the start-finish line?
Reasoning: The checkpoints are 1 mile from the start and finish, so they are spaced along 26 - 1 - 1 = 24 miles. There are 4 equally spaced checkpoints, so the checkpoints are 24 / 4 = 6 miles apart.

Come up with a question and reasoning that would justify [51] as the answer.
The question is: Susan, Arthur, Tom and, Bob are siblings. Arthur is 2 years older than Susan, and Tom is 3 years younger than Bob. If Bob is 11 years old, and Susan is 15 years old, how old are all four family members in total?
Reasoning: Arthur is 2 years older than Susan, so he is 15 + 2 = 17 years old. Bob is 11 years old, so Tom is 11 - 3 = 8 years old. So in total these four family members have 11 + 15 + 17 + 8 = 51 years.