Question: Ten percent less than twice the total number of students present in the science class yesterday have attended class today. If there were 70 students in the class yesterday and 30 students are absent today, calculate the number of students registered for the course.
Answer: Twice the number of students present in the science class yesterday is 70 * 2 = 140. Ten percent less than twice the number of students present in the class yesterday means there are 10 / 100 * 140 = 14 fewer students than twice the number present yesterday. The number of students present in the science class today is 140 - 14 = 126. If the total number of registered students for the course who are absent today is 30, a full class of the science course has 126 + 30 = 156 students. The answer is 156.
[Question]Layla is feeding her pet fish. She has two Goldfish which each get one teaspoon of fish food. Her 3 Swordtails each get 2 teaspoons of food. Her 8 Guppies each eat half a teaspoon of food. How much food does she have to give to her fish in total?
[Answer]The two Goldfish eat a total of 2 * 1 = 2 teaspoons of food. The 3 Swordtails eat a total of 3 * 2 = 6 teaspoons of food. The 8 Guppies eat a total of 8 * 1 / 2 = 4 teaspoons of food. In total, all of her fish eat 2 + 6 + 4 = 12 teaspoons of fish food. The answer is 12.
Q: Colston knows that his teacher loves drinking coffee and one day wants to see how much she drinks each week. He sees that she has a 20-ounce thermos and when she makes her coffee she pours a 1/2 cup of milk in, and then fills the coffee to the top. She does this twice a day. After the five-day school week, he decides to tell her, and when she hears how much coffee she drinks, she decides to drink 1/4 of what she normally drinks. How many ounces of coffee does she now drink a week?
A: 1 / 2 a cup = 4 ounces. Each thermos contains 16 ounces of coffee because 20 - 4 = 16. She drinks 32 ounces a day because 2 x 16 = 32. She drinks 160 ounces a week because 32 x 5 = 160. She starts drinking only 40 ounces because 160 / 4 = 40. The answer is 40.
Question: Janet buys 45-pound containers of cat litter for $21 each. If her cat litter box holds 15 pounds of cat litter, and she changes out the litter weekly, how much will it cost, in dollars, for her to buy enough litter to last 210 days?
Answer: If she changes the box weekly, then in 210 days, she will change the box 210 / 7 = 30 times. At 15 pounds of litter for every box change, she will require 30 * 15 = 450 pounds of cat litter in 210 days. If she buys 45 - pound containers, then for 450 pounds she will need to buy 450 / 45 = 10 containers of litter. At $21 per container, to buy enough cat litter for 210 days, it will cost 10 * $21 = $210. The answer is 210.
[Question]Moses and Tiffany want to see who is faster. But instead of a race, they just start running down the block. Tiffany runs 6 blocks in 3 minutes. Moses runs 12 blocks in 8 minutes. What is the speed (defined as blocks per minute) of the runner with the higher average speed?
[Answer]Tiffany runs 2 blocks per minute because 6 / 3 = 2. Moses runs 1.5 blocks per minute because 12 / 8 = 1.5. The runner with the highest average speed is Tiffany because 2 > 1.5. The answer is 2.
[Question]Peter needs 80 ounces of soda for his party. He sees that 8 oz cans cost $.5 each. How much does he spend on soda if he buys the exact number of cans he needs?
[Answer]
He needs 10 cans because 80 / 8 = 10. He spends $5 because 10 x .5 = 10. The answer is 5.