Q: Erin put 16 curlers in her hair. One-fourth of the curlers are small pink ones. There are twice as many medium blue curlers as there are pink ones. The rest are large green curlers. How many large green curlers does Erin have in her hair?
A: There are 16 curlers in all and ¼ of them are pink or 16 curlers / 4 = 4 pink curlers. There are twice as many blue curlers as there are pink ones, so there are 4 pink x 2 = 8 blue curlers. Together, there are 4 pink curlers + 8 blue curlers = 12 pink and blue curlers in Erin’s hair. The remaining curlers are green, so of the 16 total curlers – 12 pink and blue curlers = 4 green curlers are in Erin’s hair. The answer is 4.
Question: Tonya spent $90.00 on art supplies. 4 canvases cost $40.00 and a mixed set of paints cost 1/2 that much. She also spent $15.00 on an easel, and the rest of the money on paintbrushes. How much money did she spend on paintbrushes?
Answer: The canvases cost $40.00 and she spent half that amount on paint so she spent 40 / 2 = $20.00 on paint. She spent $40.00 on canvases, $20.00 on paint and $15.00 on an easel so she spent 40 + 20 + 15 = $75.00. She spent $90.00 total and her other purchases totaled $75.00 so she spent 90 - 75 = $15.00 on paint brushes. The answer is 15.
[Question]Patty decides that to convince her brother and sister to do her chores in exchange for cookies. Patty agrees to give them 3 cookies for every chore they do. Each kid normally has 4 chores to do per week. Patty has $15 to buy cookies. Each pack of cookies contains 24 cookies and costs $3. How many weeks can Patty go without doing chores by paying her siblings with cookies?
[Answer]Patty can buy 5 packs of cookies because 15 / 3 = 5. Patty gets 120 cookies because 5 x 24 = 120. Patty would need to pay 12 cookies per week because 3 x 4 = 12. Patty can avoid 10 weeks of chores because 120 / 12 = 10. The answer is 10.
Q: It takes 1 person working 10 hours to figure out the solution to a math problem. If you add a second person who's equally good at math, how long will the two of them have to work to solve the same problem?
A: Since you're doubling the number of people working on the task, that means you will be able to reduce the amount of time worked in half if they're of equal skill. Therefore, you take the original time of 10 hours and perform 10 / 2 = 5 hours spent working on the problem. The answer is 5.
Question: A busy restaurant is counting how many customers they had during that Friday to try to predict how many they might get on Saturday. During breakfast, they had 73 customers. During lunch, they had 127 customers. During dinner, they had 87 customers. If they predict they'll get twice the amount of customers on Saturday as they had on Friday, how many customers do they predict they will get?
Answer: On Friday the restaurant had 73 customers for breakfast + 127 customers for lunch + 87 customers for dinner = 287 customers total on Friday. If they predict getting 2x the amount of customers on Saturday as on Friday, they will have 287 customers x 2 = 574 customers on Saturday. The answer is 574.
Q: Two sisters go to the movies. Movie tickets are $8 per person. If the sisters brought $25 with them, how much change will they receive after buying the tickets?
A:
Movie tickets cost for two people is $8 x 2 = $16. The sisters will receive change of $25 - $16 = $9. The answer is 9.