Come up with a question and reasoning that would justify [72] as the answer.
The question is: Andy had a platter of chocolate cookies. He ate 3 of them then gave his little brother 5 because he was behaving. He then handed the platter to his basketball team of eight members. The first player to arrive took 1, the second player to arrive took 3, the third player took 5, and so on. When the last player took his share, the platter was empty. How many chocolate cookies did Andy have from start with?
Reasoning: Andy and his brother ate 5 + 3 = 8 cookies in total. The nth term of the sequence for the basketball players taking cookies in 2n - 1. The number of players is 8 so they would have eaten 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 = 64 cookies. In total Andy had 64 + 8 = 72 cookies to start with before they were all eaten.

Come up with a question and reasoning that would justify [150] as the answer.
The question is: James prints out 2 books. They are each 600 pages long. He prints out double-sided and 4 pages per side. How many sheets of paper does he use?
Reasoning: He printed 600 * 2 = 1200 pages. Each sheet of paper was 4 * 2 = 8 pages. So he used 1200 / 8 = 150 sheets of paper.

Come up with a question and reasoning that would justify [10] as the answer.
The question is: On Monday, Mack writes in his journal for 60 minutes at a rate of 1 page every 30 minutes. On Tuesday, Mack writes in his journal for 45 minutes at a rate of 1 page every 15 minutes. On Wednesday, Mack writes 5 pages in his journal. How many pages total does Mack write in his journal from Monday to Wednesday?
Reasoning: On Monday, Mack writes 60 / 30 = 2 pages. On Tuesday, Mack writes 45 / 15 = 3 pages. In total, from Monday to Wednesday, Mack writes 2 + 3 + 5 = 10 pages.