Come up with a question and reasoning that would justify this answer: 450
Question and rationale: The question is: Delores has some money. She buys a computer for $400 and a printer for $40. If she has $10 left, how much money, in dollars, did Delores have at first?
Step-by-step reasoning process: The computer and printer cost 400 + 40 = 440 dollars. Delores had 440 + 10 = 450 dollars at first.

Come up with a question and reasoning that would justify this answer: 16
Question and rationale: The question is: Ali and Sara ate 80 small apples combined. Ali ate 4 times more apples than Sara. How many apples did Sara eat?
Step-by-step reasoning process: Let A be the number of apples Ali ate and S be the number of apples Sara ate. We have: A + S = 80 apples. And: A = 4S. Which means: 4S + S = 80. So: 5S = 80. So the number of apples Sara ate is: S = 80 / 5 = 16 apples.

Come up with a question and reasoning that would justify this answer: 22
Question and rationale: The question is: A yearly book sale is held in school where students can sell their old books at a cheaper price. Two-fifths of Lovely's books can be sold for $2.50 each and the rest for $2 each. How much will Lovely earn if all 10 books were sold?
Step-by-step reasoning process: Lovely will sell 10 x 2 / 5 = 4 books for $2.50 each. She will sell 10 - 4 = 6 books for $2 each. Her earnings for the 4 books at $2.50 will be $2.50 x 4 = $10. Her earnings for the 6 books for $2 each will be $2 x 6 = $12. Thus, Lovely's total earning if all 10 books are sold is $10 + $12 = $22.

Come up with a question and reasoning that would justify this answer: 6
Question and rationale:
The question is: Andy has 4 times as many white socks as he has black socks. If he loses half his white socks, how many more white socks does he still have than black socks if he has 6 black socks?
Step-by-step reasoning process: Andy has 6 x 4 = 24 white socks. He loses 24 / 2 = 12 white socks. He still has 12 - 6 = 6 white socks more than black socks.