Question: Jane runs 3 kilometers in two hours. What is her speed in meters per minute?
Answer: Step-by-step reasoning process: Since 1 kilometer is equal to 1000 meters, then 3 kilometers is 3 x 1000 = 3000 meters. Since an hour has 60 minutes, then 2 hours is equal to 2 x 60 = 120 minutes. Therefore, her speed is 3000 meters / 120 hours = 25 meters per minute.
So the answer is 25.

Question: Stephen ordered 2 large pizzas, both cut into 12 slices. He ate 25% of the pizza. His friend Pete ate 50% of the remaining pizza. How many slices are left over?
Answer: Step-by-step reasoning process: He ordered 2 pizzas, each cut into 12 slices so that's 2 * 12 = 24 slices. Stephen ate 25% of the pizza so he ate .25 * 24 = 6 slices. That leaves 24 - 6 = 18 slices. 18 slices are left and Pete eats 50% of 18 slices so he eats 18 * .50 = 9 slices. If there were 18 slices and Pete ate 9 slices then there are 18 - 9 = 9 slices left over.
So the answer is 9.

Question: Emily has 7 times as many oranges as Sandra. Sandra has 3 times as many oranges as Betty. If Betty has 12 oranges, how many oranges does Emily have?
Answer: Step-by-step reasoning process: Sandra has 3 * 12 = 36 oranges. So, Emily has 7 * 36 = 252 oranges.
So the answer is 252.

Question: There were students from three different schools taking part in a debate organized by the town's mayor on a stage. The first school had twice as many students as the second school, and the second school had 40 more students than the third school. If the third school had 200 students, and after the debate was over, every student shook the mayor's hand, calculate the total number of students who shook the mayor's hand on the stage.
Answer:
Step-by-step reasoning process: If the third school had 200 students, and the second school had 40 more students than the third school, the second school had 200 + 40 = 240 students. The third and second schools had 240 + 200 = 440 students on stage taking part in the debate. Since the first school had twice as many students as the second school, and the second school had 240 students, the first school had 240 * 2 = 480 students on stage taking part in the debate. If after the debate was over, every student at the stage shook the mayor's hand, the number of students who shook the mayor's hand is 480 + 440 = 920 students.
So the answer is 920.