Come up with a question and reasoning that would justify [4380] as the answer.
The question is: Gavin has had 4 dreams every day for a year now. If he had twice as many dreams last year as he had this year, calculate the total number of dreams he's had in the two years.
Reasoning: Since a year has 365 days, if Gavin has been having 4 dreams every day for a year now, he has had 4 * 365 = 1460 dreams this year. Gavin had twice as many dreams last as he had this year, meaning he had 2 * 1460 = 2920 dreams last year. The total number of dreams he has had in the two years is 2920 + 1460 = 4380 dreams.

Come up with a question and reasoning that would justify [19] as the answer.
The question is: A small, old, wooden bridge can hold up to 100 kilograms at once. Mike, Megan, and Kelly are three children who decided to cross the bridge at the same time. Kelly weighs 34 kilograms, which is 15% less than Megan. Mike weighs 5 kilograms more than Megan. How much too much do the three children weigh together to cross the bridge?
Reasoning: If Kelly weighs 15% less than Megan, this means Kelly's weight is 100 - 15 = 85% of Megan's weight. 85% is 0.85, so Megan weighs 34 / 0.85 = 40 kilograms. Mike weighs 5 kilograms more than Megan, so he weighs 40 + 5 = 45 kilograms. In total all three kids weigh 34 + 40 + 45 = 119 kilograms. That means to cross the bridge safely, they weigh 119 - 100 = 19 kilograms too much.

Come up with a question and reasoning that would justify [260] as the answer.

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: On Thursday Walmart sold 210 pounds of ground beef. On Friday they sold twice that amount. On Saturday they only sold 150 pounds. What was the average amount of beef sold per day?
Reasoning: On Friday Walmart sold 2 * 210 pounds = 420 pounds. For all three days Walmart sold 210 + 420 + 150 pounds = 780 pounds. The average amount of beef sold per day is 780 pounds / 3 days = 260 pounds.