Q: Jackson's oldest son gets 4 cookies after school and his youngest son gets 2 cookies after school. If there are 54 cookies in a box, how many days will the box last?
A: 9
Step-by-step reasoning process: The oldest son gets 4 cookies and the youngest gets 2, so every day they eat 4 + 2 = 6 cookies. There are 54 cookies in a box and the boys eat 6 cookies a day, so the box will last 54 / 6 = 9 days.


Q: Ronnie is a train engineer. His train pulls 3 red boxcars, 4 blue boxcars, and 7 black boxcars. If the black boxcars can each hold 4000 pounds of coal, which is half as much as what the blue boxcars can hold, and the red boxcars can hold 3 times as much as the blue boxcars, how many pounds of coal can all of the train's boxcars combined hold?
A: 132000
Step-by-step reasoning process: If we let X represent the number of pounds of coal that the blue boxcar can hold, then 4000 = (1 / 2)X. Solving for X, we get X = 8000 pounds of coal, which represents what the blue car can hold. Thus, the red boxcar can hold 3 * 8000 = 24,000 pounds of coal. 3 red boxcars can carry 3 * 24,000 = 72,000 pounds of coal. 7 black boxcars can carry 7 * 4,000 = 28,000 pounds of coal. 4 blue boxcars carry 4 * 8,000 = 32,000 pounds of coal. Together, all the trains boxcars can carry 72,000 + 28,000 + 32,000 = 132,000 pounds of coal.


Q: If we assume all thirty 4-wheel drive cars in the parking lot have their spare tire with them, how many tires are in the parking lot?
A: 150
Step-by-step reasoning process: Each car has 4 tires + 1 spare = 5 tires. If there are 30 cars in the parking lot and each one has 5 tires, then the total number of tires is 30 * 5 = 150 tires.


Q: Harry owns 3 geckos, 2 iguanas, and 4 snakes. If he spends $10 to feed each snake, $5 to feed each iguana, and $15 to feed each gecko every month, how much does he spend every year to feed all his pets?
A: 1140
Step-by-step reasoning process: He spends $10 / snake * 4 snakes = $40 to feed his snakes every month. He spends $5 / iguana * 2 iguanas = $10 to feed his iguanas every month. He spends $15 / gecko * 3 geckos = $45 to feed his geckos every month. So overall he spends $40 + $10 + $45 = $95 to feed all his pets every month. Therefore every year pet food costs him $95 / month * 12 months = $1140.