Come up with a question and reasoning that would justify this answer: 28
Question and rationale: The question is: Michael has two brothers. His oldest brother is 1 year older than twice Michael's age when Michael was a year younger. His younger brother is 5 years old, which is a third of the age of the older brother. What is their combined age?
Step-by-step reasoning process: The oldest brother is 15 because 3 x 5 = 15. Michael is 8 because if 1 + (Michael's age - 1) x 2 = 15 then Michael's age = 8. Their combined age is 28 because 5 + 15 + 8 = 28.

Come up with a question and reasoning that would justify this answer: 640
Question and rationale: The question is: 68% of all pies are eaten with forks. If there are 2000 pies of all kinds, how many of the pies are not eaten with forks?
Step-by-step reasoning process: If there are 2000 pies of all kinds, and 68% of all pies are eaten with forks, there are 68 / 100 * 2000 = 1360 pies eaten with forks. The number of pies that are not eaten with pie is 2000 - 1360 = 640.

Come up with a question and reasoning that would justify this answer: 850000
Question and rationale: The question is: Emily makes $1,000,000 per year. If she has 10 employees who make $20,000 per year, how much would her salary be if she took part of her salary to make sure all of her employees make $35,000 per year.
Step-by-step reasoning process: Each employee needs $35,000 - $20,000 = $15,000 more per year. In total, Emily needs to pay $15,000 * 10 = $150,000 extra. Emily will need to have a new salary of $1,000,000 - $150,000 = $850,000 per year.

Come up with a question and reasoning that would justify this answer: 5100
Question and rationale:
The question is: A bar of steel weighs twice the mass of a bar of tin. If a steel bar also weighs 20 kgs more than a copper bar and a copper bar weighs 90 kgs, calculate the total weight of a container with 20 bars of each type of metal.
Step-by-step reasoning process: The total weight of 20 bars of copper is 20 * 90 = 1800kgs. If a copper bar weighs 90 kgs, and a steel bar weighs 20 kgs more than a copper bar, the weight of a steel bar is 90 + 20 = 110 kgs. If a bar of steel weighs 110 kgs, 20 bars will weigh 20 * 110 = 2200kgs. The total weight of 20 bars of copper and steel is 2200 + 1800 = 4000 kgs. A bar of steel weighs twice the mass of a bar of tin, meaning a bar of tin weighs 110 / 2 = 55 kgs. The total weight of 20 bars of tins is 55 * 20 = 1100 kgs. The total weight of 20 bars of each metal is 4000 + 1100 = 5100 kgs.