Question: Stephen made 10 round trips up and down a 40,000 foot tall mountain. If he reached 3/4 of the mountain's height on each of his trips, calculate the total distance he covered.
Answer with step-by-step thinking: Up a mountain, Stephen covered 3 / 4 * 40000 = 30000 feet. Coming down, Stephen covered another 30000 feet, making the total distance covered in one round to be 30000 + 30000 = 60000. Since Stephen made 10 round trips up and down the mountain, he covered 10 * 60000 = 600000.
So the answer is 600000.


Question: James injured his ankle and decides to slowly start working back up to his previous running goals and then surpass them. Before the injury, he was able to run 100 miles per week. He wants to get up to 20% more than that total in 280 days and each week he will increase miles walked in the week by the same amount. How many miles does he need to add per week?
Answer with step-by-step thinking: He wants to run 100 * .2 = 20 miles more than he used to. So he needs to run 100 + 20 = 120 miles. He is doing this in 280 / 7 = 40 weeks. So he needs to add 120 / 40 = 3 miles per week.
So the answer is 3.


Question: James takes 20 units per semester at community college. If each unit costs $50 how much does he pay for 2 semesters?
Answer with step-by-step thinking:
He pays 20 * 50 = $1000 per semester. So he pays 1000 * 2 = $2000.
So the answer is 2000.