Question: The pet store can buy a goldfish for $.25 and sell it for $.75. The owner plans to use the profits from goldfish sales to buy a new tank, which costs $100. After one week, he is 45% short of the price. How many goldfish did he sell that week?
Answer: He is $45 short because 100 x .45 = 45. He earned $55 off goldfish because 100 - 45 = 55. He makes $.5 profit per goldfish because .75 - .25 = .5. He sold 110 goldfish that week because 55 / .5 = 110. The answer is 110.
[Question]Jimmy has 18 cards. Jimmy gives three cards to Bob. If Jimmy gives Mary twice as many cards as he gave to Bob, how many cards does Jimmy have left?
[Answer]Mary has 2 * 3 = 6 cards. Jimmy has 18 - 3 - 6 = 9 cards left. The answer is 9.
Q: A farmer plants his vegetables in neat rows. He has 64 bean seedlings and plants 8 seedlings in a row. He also has 84 pumpkin seeds and plants 7 seeds in a row. Recently, he planted 48 radishes with 6 radishes in a row. If the farmer plants two rows per plant bed, how many plant beds did he have for all his plants?
A: There are 64 / 8 = 8 rows of bean seedlings. There are 84 / 7 = 12 rows of pumpkin seedlings. There are 48 / 6 = 8 rows of radishes. Thus, there are a total of 8 + 12 + 8 = 28 rows of vegetables. Therefore, the farmer had 28 / 2 = 14 plant beds. The answer is 14.
Question: The snack machine at Richmond High School sells candy bars for $2 each and chips for $.50 each. How much money, in dollars, will 5 students need in total if each of them gets 1 candy bar and 2 bags of chips?
Answer: The students buy 2 * 5 = 10 bags of chips. 10 bags of chips cost 10 * 0.5 = 5 dollars. 5 candy bars cost 5 * 2 = 10 dollars. They will need 10 + 5 = 15 dollars. The answer is 15.
[Question]Three schools organized a science fair competition and invited students from all the schools to develop ideas and present them before a panel of judges selected by all the schools competing in the science fair. There were 50 students from Know It All High School at the competition, 3/5 times as many students from Karen High as Know It All High School, and twice the combined number of students from the first two schools that came were from Novel Corona High School. Calculate the total number of students at the competition?
[Answer]If 50 students came from Know It All High School, then Karen High, which had 3 / 5 times as many students as Know It All High School, had 3 / 5 * 50 = 30 students at the fair. The total number of students from Know It All and Karen high schools is 50 + 30 = 80 students. If Novel Corona had twice the combined number of students from Know It All and Karen high schools, then it had 2 * 80 = 160 students at the competition. The total number of students at the competition is 80 + 160 = 240. The answer is 240.
[Question]Adam teaches 50 students a year. How many students will Adam teach in 10 years if in the first year he only teaches 40 students?
[Answer]
Adam will teach 50 * 9 = 450 students in 9 years. So, in 10 year Adam will teach 450 + 40 = 490 students. The answer is 490.