Q: The Diving Club offers 2 beginning diving classes on weekdays and 4 beginning classes on each day of the weekend. Each class has room for 5 people. How many people can take classes in 3 weeks?
A: There are 2 classes x 5 days = 10 classes on weekdays. There are 4 classes x 2 days = 8 classes on weekends. There are a total of 10 + 8 = 18 classes per week. So each week, 18 x 5 = 90 people can take classes. Thus, 90 x 3 = 270 people can take classes in 3 weeks. The answer is 270.
Question: Andrew is having two of his friends over for a sleepover. For one friend, Brian, he asks his mother to buy 3 donuts. He asks for his other friend, Samuel, to get the same. A day before the sleepover Andrew ends up inviting two more friends and asks his mother to buy them the same amount of donuts. Just in case, Andrew’s mother wants to buy one more donut for each of Andrew’s friends. Andrew’s mother is going to buy the same amount of donuts for Andrew as everybody else. How many donuts will Andrew’s mother need to buy?
Answer: Andrew is having 4 friends over who will get 3 donuts each, 4 x 3 = 12 donuts total. Andrew’s mother wants to get 1 extra donut for each of Andrew’s friends, 3 donuts + 1 extra = 4 donuts for each of Andrew's friends. Andrew’s mother is buying 12 + 4 extra donuts for Andrew’s friends = 16 total donuts. Andrew’s mother is also going to get 3 + 1 extra donut for Andrew = 4 donuts. Andrew’s mother will need to buy 16 donuts for Andrew’s friends + 4 donuts for Andrew = 20 total donuts. The answer is 20.
[Question]Ivan had $10 and spent 1/5 of it on cupcakes. He then spent some money on a milkshake and had only $3 left. How much is the milkshake?
[Answer]Ivan spent a total of $10 - $3 = $7 on cupcakes and a milkshake. The cost of the cupcake is $10 x 1 / 5 = $2. So, $7 - $2 = $5 was spent on the milkshake. The answer is 5.
Q: Annie brought 20 brownies to school. She gave half of them to the school administrator to put in the faculty lounge. Of the remaining brownies, she gave half to her best friend, Carl, and another two to her friend, Simon. How many brownies did she have left?
A: She first gave away half of her 20 brownies, or 20 / 2 = 10 brownies, to the faculty. The remaining brownies number 20 - 10 = 10 brownies. She gave half of these remaining brownies, or 10 / 2 = 5 brownies, to Carl. This reduced her number from 10 down to 10 - 5 = 5 brownies. Finally, she gave away another 2, leaving her with 5 - 2 = 3 brownies. The answer is 3.
Question: Antoine is having a dinner party and his butcher recommends 1/2 pound of meat per person. If he's inviting 6 people over and the beef tenderloin is $15.00 a pound, how much will this cost him?
Answer: He's inviting 6 people over and needs 1 / 2 pound of meat for each so that's 6 * .5 = 3 pounds of meat. The beef tenderloin is $15.00 a pound and he needs 3 pounds so that's 15 * 3 = $45.00 for dinner. The answer is 45.
Q: A wheel on a certain machine makes 6 turns every 30 seconds. How many turns does it make in two hours?
A:
Since there are 60 seconds in 1 minute, then there are 60 / 30 = 2 sets of 30 seconds in a minute. So a wheel makes 6 x 2 = 12 turns in 1 minute. Since there are 60 minutes in 1 hour, then a wheel makes 12 x 60 = 720 turns in an hour. Therefore, the wheel makes 720 x 2 = 1440 turns in 2 hours. The answer is 1440.