Q: Kim spends $25,000 to open a store. She makes $4000 a month in revenue and her expenses are $1500 a month. How long would it take to pay back the cost to open the store?
A: Her profit is 4000 - 1500 = $2500. So it takes 25000 / 2500 = 10 months to make back the money. The answer is 10.
Question: Jack has $43 in his piggy bank. He also gets an allowance of $10 a week. If Jack puts half of his allowance into his piggy bank every week, after 8 weeks how much will Jack have in his piggy bank?
Answer: Jack saves $10 / 2 = $5.00 a week. Over 8 weeks Jack saves $5.00 / week x 8 weeks = $40.00. In total Jack has $43.00 + $40.00 = $83.00 dollars in his piggy bank. The answer is 83.
[Question]After Bella’s ballet performance, she received 2 dozen roses from her parents, and 2 roses from each of her 10 dancer friends. How many roses did Bella receive?
[Answer]Bella receives 2 x 12 = 24 roses from her parents. She receives 2 x 10 = 20 roses from her friends. She receives a total of 24 + 20 = 44 roses. The answer is 44.
Q: The epic poem currently contains 24 lines. If a person adds 3 lines to the poem every month, in how many months will the poem contain 90 lines?
A: If the epic poem currently contains 24 lines, the total number of lines added for it to reach 90 is 90 - 24 = 66 lines. If a person adds 3 lines to the poem every month, it will take 66 / 3 = 22 months for the poem to contain 90 lines. The answer is 22.
Question: Kate has to fill 52 balloons for the party. Each balloon holds 5 gallons of air. For the first 10 minutes, she can fill the balloons at a rate of 8 gallons of air per minute. For the next five minutes, she fills them at half that rate. After that, she fills the rest of the balloons at a rate of 2 gallons of air per minute. How many minutes will it take her to fill all of the balloons?
Answer: She needs to fill a total of 52 * 5 = 260 gallons of air. In the first ten minutes, she fills 8 * 10 = 80 gallons of air. For the next five minutes, she fills 8 / 2 * 5 = 20 gallons of air. That leaves her with 260 - 80 - 20 = 160 gallons of air to fill. It will take her 160 / 2 = 80 more minutes to fill the rest of the balloons. The total time to fill all of the balloons is 10 + 5 + 80 = 95 minutes. The answer is 95.
Q: Mary is going on a business trip. It takes 10 minutes for her Uber to get to her house and 5 times longer to get to the airport. It takes 15 minutes to check her bag and three times as long to get through security. Then she has to wait for 20 minutes for her flight to start boarding and twice as long before the plane is ready to take off. How many hours will this process take total?
A:
First find the time to drive to the airport: 10 minutes * 5 = 50 minutes. Then find the time it takes to get through security: 15 minutes * 3 = 45 minutes. Then find the time Mary spends waiting for the plane to take off: 20 minutes * 2 = 40 minutes. Then add the time to each step to find the total time: 10 minutes + 50 minutes + 15 minutes + 45 minutes + 20 minutes + 40 minutes = 180 minutes. Then divide that amount by the number of minutes per hour to cover the total time to hours: 180 minutes / 60 minutes / hour = 3 hours. The answer is 3.