Come up with a question and reasoning that would justify this answer: 8
Question and rationale: The question is: Edward had $17.80 to spend at the toy store. He bought 4 toy cars that cost $0.95 each and a race track that cost $6.00. How much money does Edward have left to buy more toys?
Step-by-step reasoning process: The cost of the toy cars is 4 × $0.95 = $3.80. The total cost of the toys is $3.80 + $6.00 = $9.80. Edward has $17.80 − $9.80 = $8.00 left.

Come up with a question and reasoning that would justify this answer: 29
Question and rationale: The question is: Hallie borrows a book from the library. She reads the entire book in four days. She read 63 pages the first day. On the second day, she read twice the number of pages that she'd read on day one. On the third day, she read 10 mores pages than she read on day two. If the book is 354 pages long, how many pages did she read on the fourth day?
Step-by-step reasoning process: On day two, she read 63 * 2 = 126 pages. On day three, she read 126 + 10 = 136 pages. On day four, she read 354 - 63 - 126 - 136 = 29 pages to finish the book.

Come up with a question and reasoning that would justify this answer: 30
Question and rationale: The question is: Keanu was surfing towards the shore at a speed of 20 miles per hour. A shark was swimming alongside him, riding the same wave, when it doubled its speed and moved away from Keanu. There was a pilot fish swimming alongside Keanu and the shark, and when the shark increased its speed, the pilot fish also increased its speed and moved away from Keanu, but only increasing its speed by half as much as the shark had increased its speed by. What speed, in miles per hour, was the pilot fish swimming when it moved away from Keanu?
Step-by-step reasoning process: The shark went from 20 miles per hour to a speed of 2 * 20 = 40 miles per hour. The shark increased its speed by 40 - 20 = 20 miles per hour. Half of the shark's increase in speed is 20 / 2 = 10 miles per hour. Thus the pilot fish had increased its speed to 20 + 10 = 30 miles per hour.

Come up with a question and reasoning that would justify this answer: 300
Question and rationale:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The question is: Georgia is sick and coughs 5 times a minute. Her brother Robert is also sick but he coughs twice as much as her. After 20 minutes, how many times have they coughed?
Step-by-step reasoning process: Robert coughs twice as much as Georgia who coughs 5 times so Robert coughs 2 * 5 = 10 coughs per minute. Georgia coughs 5 times and Robert coughs 10 times so together they cough 5 + 10 = 15 times per minute. After 20 minutes they will have coughed 15 * 20 = 300 coughs.