[Question]Kendra and Laurel have shops that sell different brands of shoe collections. In 2014, Kendra made $8000 less than Laurel made in sales. However, in 2015, Kendra made 20% more money than Laurel made in 2014. If Laurel earned $30000 in 2014, calculate Kendra's total earnings in the two years.
[Answer]In 2015, Kendra's sales were 20 / 100 * $30000 = $6000 more than Laurel's. So, Kendra's total sales for 2015 was $30000 + $6000 = $36000. If Kendra made $8000 less in 2014 than Laurel, she made $30000 - $8000 = $22000 in that year. The total amount of money Kendra made in the two years is $22000 + $36000 = $58000. The answer is 58000.
Q: Of the 600 students at River Falls High School, 3/4 of them play tennis. Of those that play tennis, 60% of them also play hockey. How many students play both hockey and tennis?
A: 3 / 4 of the students at River Falls High School play tennis, a total of 3 / 4 * 600 = 450 students. Of those that play tennis, 60% of them also play hockey, meaning 60 / 100 * 450 = 270 students play hockey and tennis. The answer is 270.
Question: There are 9 boys and 12 girls in a class. The teacher needs to create groups with three members for their class activity. How many groups are formed?
Answer: There are 9 + 12 = 21 students in a class. Hence, 21 / 3 = 7 groups are formed. The answer is 7.
[Question]Mark and James need a total of 14 dice that are 12 sided to play their game. Mark has a bag of 10 dice and 60% of them are 12 sided. James has a bag of 8 dice and 75% of them are 12 sided. How many dice will the boys need to buy to play their game?
[Answer]Mark has 60% 12 sided dice, so 60 / 100 * 10 dice in his bag = 6 12 sided dice. James has 75% 12 sided dice, so 75 / 100 * 8 dice in his bag = 6 12 sided dice. They will need to purchase 14 dice - 6 dice - 6 dice = 2 dice. The answer is 2.
Q: Big boxes contain 7 dolls each. Small boxes contain 4 dolls each. There are 5 big boxes and 9 small boxes. How many dolls are there in total?
A: There are 7 * 5 = 35 dolls in the big boxes. There are 4 * 9 = 36 dolls in the small boxes. There are 35 + 36 = 71 dolls altogether. The answer is 71.
Question: Jason and Jeremy want to paint their wall white and agreed to split the cost of the paint. A gallon of paint costs $45 and can cover up to 400 square feet. How much will each of them contribute to the cost of the paint if their walls have a total area of 1600 square feet and will need a second coat?
Answer:
They need 1600 square feet / 400 square feet / gallon = 4 gallons of paint for their walls. Since they will do a second coating, then they would need 4 gallons x 2 = 8 gallons in all. Eight gallons of paint will cost $45 / gallon x 8 gallons = $360. Thus, Jason and Jeremy will each contribute $360 / 2 = $180. The answer is 180.