Q: Phantom's mom gave him $50 to buy printer-inks. At the store, he bought two black printer inks which cost $11 each, three red printer inks which cost $15 each, and two yellow printer inks which cost $13 each. Phantom found out that his money is not enough to buy all the printer inks. How much more money should he ask his mom to be able to buy the printer inks?
A: Black printer inks will cost him 2 x $11 = $22. Red printer inks will cost him 3 x $15 = $45. And yellow printer inks will cost him 2 x $13 = $26. The total amount he has to pay for the printer inks is $22 + $45 + $26 = $93. Therefore, Phantom has to ask $93 - $50 = $43 more from his mom to be able to buy the printer inks. The answer is 43.
Question: Every 2 years, the number of swans at Rita's pond doubles. Currently, there are 15 swans in the pond. How many swans will there be in ten years?
Answer: If currently there are 15 swans in the pond, in two years' time there will be 15 * 2 = 30 swans. In another two years, the number of swans in the pond will double to 2 * 30 = 60 swans. In another two years, the number of swans in the pond will double to 2 * 60 = 120 swans. If after 6 years there are 120 swans in the pond, in eight years times there will be 2 * 120 = 240 swans. In another two years, which is 10 years, there will be 2 * 240 = 480 swans in the pond. The answer is 480.
[Question]Xena is trying to outrun a dragon to get to the safety of a cave it's too big to fit into. Xena has a 600 foot head start, but the dragon can burn her if it gets within 120 feet of her. If Xena runs 15 feet per second and the dragon flies 30 feet per second, how many seconds does Xena have to get to the cave?
[Answer]First find the size of the gap the dragon needs to close to burn Xena: 600 ft - 120 ft = 480 ft. Then find how many feet closer the dragon gets each second by subtracting Xena's speed from the dragon's speed: 30 ft / sec - 15 ft / sec = 15 ft / sec. Then divide the distance by the speed difference to find how many seconds it takes for the dragon to get close enough to burn Xena: 480 ft / 15 ft / sec = 32 sec. The answer is 32.
Q: There are 6 forks in the cutlery drawer. There are 9 more knives than forks, and there are twice as many spoons as knives and half as many teaspoons as forks. After 2 of each cutlery is added to the drawer, how many pieces of cutlery are there in all?
A: There are 6 + 9 = 15 knives. There are 15 x 2 = 30 spoons. There are 6 / 2 = 3 teaspoons. There are 6 + 15 + 30 + 3 = 54 pieces before adding more cutlery. 2 of each 4 types of cutlery are added, and therefore 2 x 4 = 8 pieces added. In total there are 54 + 8 = 62 pieces of cutlery in the drawer. The answer is 62.
Question: To get free delivery, Alice needs to spend a minimum of $35.00 online at her favorite grocery store. In her cart she has 1.5 pounds of chicken at $6.00 per pound, 1 pack of lettuce for $3.00, cherry tomatoes for $2.50, 4 sweet potatoes at $0.75 each, 2 heads of broccoli for $2.00 each and a pound of Brussel sprouts for $2.50. How much more does she need to spend in order to get free delivery?
Answer: She bought 1.5 pounds of chicken for $6.00 / pound so that's 1.5 * $6 = $9.00. She bought 4 sweet potatoes at $0.75 each so that's 4 * $0.75 = $3.00. She bought 2 heads of broccoli for $2.00 each so that's 2 * $2 = $4.00. The chicken is $9.00, lettuce is $3.00, tomatoes are $2.50, the sweet potatoes are $3.00, broccoli is $4.00 and Brussel sprouts are $2.50 for a total of $9 + $3 + $2.50 + $3 + $4 + $2.5 = $24.00. To get free delivery she needs to spend $35.00, and she already has $24.00 in her cart, so she needs to spend an extra $35 - $24 = $11.00. The answer is 11.
Q: Borris liquor store uses 90 kilograms of grapes every 6 months. He is thinking of increasing his production by twenty percent. How many grapes does he need in a year after increasing his production?
A:
Borris uses 90 x 2 = 180 kilograms of grapes per year. The increase of kilograms of grapes he needed per year is 180 x 0.20 = 36. Therefore, Borris needs 180 + 36 = 216 kilograms of grapes in a year. The answer is 216.