[Question]Noel bakes 4 dozen donuts for his class. There are 30 students in class, but only 80% like donuts. How many donuts does each student who likes donuts get to eat?
[Answer]He makes 48 donuts because 4 x 12 = 48. 24 students want to eat donuts because 30 x .8 = 24. They can each eat 2 donuts because 48 / 24 = 2. The answer is 2.
Q: Jim ran 16 miles in 2 hours while Frank ran 20 miles in 2 hours. How many more miles did Frank run than Jim in an hour?
A: Jim ran 16 / 2 = 8 miles for an hour. Frank ran 20 / 2 = 10 miles for an hour. Frank ran 10 - 8 = 2 more miles than Jim in an hour. The answer is 2.
Question: Reuben opens a sandwich shop selling his namesake sandwich and pastrami sandwiches. Pastrami cost $2 more than the Reuben. He sells 10 Reubens and 5 Pastrami sandwiches and earns $55. How much does a pastrami sandwich cost?
Answer: If X = "Price of Reuben" We know that 10(X) + 5(X + 2) = 55. Therefore 10X + 5X + 10 = 55. Therefore 15X = 45. Therefore, the price of a Reuben is $3 because 45 / 15 = 3. The price of pastrami is $5 because 3 + 2 = 5. The answer is 5.
[Question]Nick is asking all his co-workers to chip in for a birthday gift for Sandra that costs $100. The boss agrees to contribute $15, and Todd volunteers to contribute twice as much since he always has to one-up everyone. If the remaining 5 employees (counting Nick) each pay an equal amount, how much do they each pay?
[Answer]First find Todd's contribution by doubling the boss's contribution: $15 * 2 = $30. Now subtract Todd and the boss's contributions to find out how much still needs to be paid: $100 - $30 - $15 = $55. Now divide the remaining cost by the number of employees to find the cost per employee: $55 / 5 employees = $11 / employee. The answer is 11.
Q: Karlee has 100 grapes and 3/5 as many strawberries as grapes. Giana and Ansley, two of her friends, come visiting, and she gives each of them 1/5 of each fruit. How many fruits is Karlee left with in total?
A: If Karlee has 3 / 5 times as many strawberries as grapes, she has 3 / 5 * 100 grapes = 60 strawberries. When her friends come over, she gives each of them 1 / 5 * 100 grapes = 20 grapes. In total, she gives out to her two friends 2 friends * 20 grapes / friend = 40 grapes. She's left with 100 grapes - 40 grapes = 60 grapes. She also gives each of her friends 1 / 5 * 60 strawberries = 12 strawberries. In total, she gives her two friends 2 friends * 12 strawberries / friend = 24 strawberries. She's left with 60 strawberries - 24 strawberries = 36 strawberries. The total number of fruits Karlee remains with is 36 strawberries + 60 grapes = 96 fruit. The answer is 96.
Question: Yanna bought ten shirts at $5 each and three pairs of sandals at $3 each. How much change did she get back if she gave a one hundred dollar bill?
Answer:
Ten shirts cost 10 x $5 = $50. And, three pairs of sandals cost 3 x $3 = $9. Thus, she spent $50 + $9 = $59. Therefore, she got back change of $100 - $59 = $41. The answer is 41.