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.
Solution:
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
Answer: 600000