[Question]A magician has a top hat with 20 red marbles and a top hat with 30 blue marbles. If he takes away 3 red marbles and four times as many blue marbles as red marbles (without looking), how many marbles in total does he have left?
[Answer]He had 20 red marbles and took away 3 leaving 20 - 3 = 17 red marbles. He took 4 times as many blue marbles as red marbles which is 4 * 3 = 12 blue marbles. He took 12 blue marbles from 30 leaving 30 - 12 = 18 blue marbles. He now has 17 + 18 = 35 marbles left. The answer is 35.
Q: Brady gets paid 70 cents for each recipe card he transcribes. He also gets a 10 dollar bonus each time he transcribes 100 cards. If he transcribes 200 cards how much will he earn including bonuses?
A: For 200 cards he earns .70 * 200 = 140 dollars. Since he transcribes 200 cards his bonus is 10 * 2 = 20 dollars. In total he earns 140 + 20 = 160 dollars. The answer is 160.
Question: Mr. and Mrs. Boyden take their 3 children to a leisure park. They buy tickets for the whole family. The cost of an adult ticket is $6 more than the cost of a child ticket. The total cost of the 5 tickets is $77. What is the cost of an adult ticket?
Answer: Let X be the cost of an adult ticket. So the cost of a child ticket is X - 6. The total cost of the 5 tickets is X * 2 + 3 * (X - 6) = 77. X * 2 + 3 * X - 3 * 6 = 77. 5 * X - 18 = 77. 5 * X = 77 + 18 = 95. X = 19. The answer is 19.
[Question]Laura wants to bake a cake for her mother. She checks the recipe and the pantry and sees that she needs to buy 2 cups of flour, 2 cups of sugar, a cup of butter, and two eggs. The flour costs $4. The sugar costs $2. The eggs cost $.5, and the butter costs $2.5. When she is done baking it, she cuts the cake into 6 slices. Her mother enjoys a piece the first two days. But on the third day, they discover that Kevin, her dog, ate the rest of the cake. How much did the amount the dog ate cost?
[Answer]The cake cost $9 in total because 4 + 2 + .5 + 2.5 = 9. Each slice costs $1.5 because 9 / 6 = 1.5. The dog ate 4 slices because 6 - 2 = 4. The amount the dog ate cost $6 because 4 x 1.5 = 6. The answer is 6.
Q: Donna cut her pizza into 12 slices and ate half for lunch. She ate 1/3 of the remaining pizza for dinner. How many slices are left for Donna's lunch tomorrow?
A: Her pizza has 12 slices and she ate 1 / 2 of the pizza for lunch so that leaves 12 / 2 = 6 slices left. She eats 1 / 3 of the pizza for dinner, so she eats 1 / 3 * 6 = 2 slices. She had 6 slices and ate 2 slices, so that leaves her with 6 - 2 = 4 slices for tomorrow's lunch. The answer is 4.
Question: Erin is watching a TV mini series of Pride and Prejudice. There are 6 episodes that are each 50 minutes long. If Erin watches all of the episodes in one sitting, one after the other with no breaks, how many hours will she spend watching the series?
Answer:
The total minutes in the series is 6 * 50 = 300 minutes. Since there are 60 minutes in an hour, Erin will spend 300 / 60 = 5 hours watching the series. The answer is 5.