[Question]Utopia National Park hosted 30,000 elephants on Friday night. The next morning, there was a 4-hour elephant exodus out of the park, at a constant rate of 2,880 elephants/hour. Over the next 7-hour period, new elephants entered the park at a constant rate. If the final number of elephants in the park was 28,980, at what rate did the new elephants enter the park?
[Answer]The Saturday morning exodus out of the park comprised 4 * 2880 = 11520 elephants. This means that after the exodus, the park was left with 30000 - 11520 = 18480 elephants. Since the final number of elephants was 28,980, the new elephants that entered were 28980 - 18480 = 10500. The rate at which the new elephants entered the park was therefore 10500 / 7 = 1500 elephants / hour. The answer is 1500.
Q: Oshea bought 200 basil seeds. He wants to plant them in planters. He has 4 large planters that can hold 20 seeds each. He also has small planters that can hold 4 seeds each. How many small planters will he need to plant all the basil seeds?
A: The large planters can hold a total of 4 * 20 = 80 seeds. This will leave Oshea with 200 - 80 = 120 seeds remaining. This means he will need 120 / 4 = 30 small planters. The answer is 30.
Question: Jessica's class is going to a farm for a field trip. The school will bring all 35 students in the class plus 4 adult chaperones. The farm entrance fee for students costs $5 and $6 for adults. How much will the school pay for the farm entrance in all?
Answer: The students' entrance fee cost $5 x 35 = $175. The adults' entrance fee cost $6 x 4 = $24. Therefore, the school will pay a total of $175 + $24 = $199 for the farm entrance. The answer is 199.
[Question]John decided to start rowing around a square lake. Each side of the lake is 15 miles. Jake can row at twice the speed he can swim. It takes him 20 minutes to swim 1 mile. How long, in hours, does it take to row the lake?
[Answer]The perimeter of the lake is 4 * 15 = 60 miles. He swims at a speed of 60 / 20 = 3 mph. So he rows at a speed of 3 * 2 = 6 mph. That means it takes him 60 / 6 = 10 hours to row around the lake. The answer is 10.
Q: Cori is 3 years old today. In 5 years, she will be one-third the age of her aunt. How old is her aunt today?
A: In 5 years, Cori will be 3 + 5 = 8 years old. In 5 years, Cori's aunt will be 8 x 3 = 24 years old. Today, her aunt is 24 - 5 = 19 years old. The answer is 19.
Question: The long jump finals contained four national champions competing against one another. The first competitor jumped a distance of 22 feet. The second competitor jumped one foot farther than the first competitor. The third competitor jumped two feet shorter than the third competitor. And the fourth competitor jumped 3 feet further than the third competitor. How long, in feet, did the fourth competitor jump?
Answer:
The second competitor jumped one foot farther than the first competitor, for a distance of 22 + 1 = 23 feet. The third competitor jumped two feet shorter than the third competitor, for a distance of 23 - 2 = 21 feet. And the fourth competitor jumped 3 feet further than the third competitor, for a distance of 21 + 3 = 24 feet. The answer is 24.