Q: Last month, you borrowed $100 from your friend. If you promise to pay her today, how much will you give to your friend if both of you agreed to return the money with a 10% increase?
A: The increase is $100 x 10 / 100 = $10. So you have to give $100 + $10 = $110 to your friend today. The answer is 110.
Question: Meryll wants to write 35 multiple-choice questions and 15 problem-solving questions for her Chemistry class. She already has written 2/5 of the multiple-choice and 1/3 of the problem-solving questions. How many more questions does she need to write for both multiple-choice and problem-solving?
Answer: Meryll has written 35 questions x 2 / 5 = 14 multiple - choice questions. While she has written 15 questions x 1 / 3 = 5 problem - solving questions. The total number of questions that Meryll has to write is 35 questions + 15 questions = 50 questions. Meryll has written a total of 14 questions + 5 questions = 19 questions. Hence, she needs to write 50 questions - 19 questions = 31 questions more. The answer is 31.
[Question]With her savings, Sara bought two books: a book for 5.5 and a book for 6.5. She gives a 20 bill to the seller. How much change does she get back?
[Answer]To find out how much the saleswoman should return to her, we have to find out how much Sara spent in total. She spent 5.5 + 6.5 = 12. So she gives 20 and the cashier should keep 12. The cashier therefore returns the difference between these two sums: 20 12 = 8. The answer is 8.
Q: Jenna runs a wholesale business. She pays $3 for each widget and resells it for $8. Every month she has to pay $10,000 in rent, 20% of her total profit in taxes, and $2,500 each to four workers. If Jenna sells 5000 widgets one month, how much is her total profit or loss?
A: First calculate how much Jenna spends on salaries: $2,500 * 4 = $10,000. Next find Jenna's total fixed costs by adding the cost of salaries and rent: $10,000 + $10,000 = $20,000. Next calculate how much profit Jenna makes on each widget by subtracting the cost from the sale price: $8 - $3 = $5. Now multiply the profit per widget by the number of widgets sold: $5 * 5000 = $25,000. Now subtract Jenna's costs from her sales to find her total profit before taxes: $25,000 - $20,000 = $5,000. Now multiply Jenna's profit by her 20% tax rate to find how much she owe in taxes: $5,000 * .2 = $1,000. Now subtract Jenna's taxes from her profit before taxes to find her total profit: $5,000 - $1,000 = $4,000. The answer is 4000.
Question: Mr Cruz went to his doctor to seek advice on the best way to gain weight. His doctor told him to include more proteins in his meals and live a generally healthy lifestyle. After a month of following his doctor's advice, Mr Cruz had a weight gain of 20 pounds. He gained 30 more pounds in the second month after more healthy eating habits. If he originally weighed 70 pounds, what's his weight after the two months?
Answer: Mr Cruz's total weight gain in the two months is 20 + 30 = 50 pounds. If he initially weighed 70 pounds, his total weight after the two months is 70 + 50 = 120 pounds. The answer is 120.
Q: Katy participated in a summer reading program at her local library. She read 8 books in June, twice as many in July and three fewer in August than she did in July. How many books did Katy read during the summer?
A:
Katy read twice as many books in July as she did in June, so she read 2 * 8 = 16 books in July. She read three fewer books in August than she did in July, so she read 16 - 3 = 13 books in August. So, including June, she read 8 + 16 + 13 = 37 books total. The answer is 37.