Q: Ahmed and Emily are having a contest to see who can get the best grade in the class. There have been 9 assignments and Ahmed has a 91 in the class. Emily has a 92. The final assignment is worth the same amount as all the other assignments. Emily got a 90 on the final assignment. What is the minimum grade Ahmed needs to get to beat Emily if all grades are whole numbers?
A: Ahmed has scored 819 total points in the class thus far because 9 x 91 = 819. Emily had scored 828 total points before the final assignments because 9 x 92 = 828. She scored 918 total points after the final assignment because 828 + 90 = 918. Ahmed needs to score a 99 to tie Emily for the semester because 918 - 819 = 99. Ahmed needs to score a 100 to beat Emily for the semester because 99 + 1 = 100. The answer is 100.
Question: Kimberly loves gumballs and will trade almost anything she owns for them. A friend knows that Kim has a bunch of shiny new earrings that she loves. She agrees to give Kim 9 gumballs for each pair of earrings. On the first day, Kim brings her 3 pairs of earrings. On the second she brings her twice as many. On the third day, she brings 1 less than she brought on the second day. If Kim eats 3 gumballs a day, how many days will the gumballs last?
Answer: On day 2 Kim trades 6 earrings because 3 x 2 = 6. On day 3 Kim trades 5 earrings because 6 - 1 = 5. In total she trades 14 pairs of earrings because 3 + 6 + 5 = 14. She trades these for 126 gum - balls because 14 x 9 = 126. These last her 42 days because 126 / 3 = 42. The answer is 42.
[Question]For his birthday, Geoffrey received clothes and money. His grandmother gave him €20, his aunt €25 and his uncle €30. With what he already had, he now has €125 in his wallet. He goes to a video game store and gets 3 games that cost 35 euros each. How much does he have left after this purchase?
[Answer]Let’s calculate the total price of video games: 35€ X 3€ / game = 105€. Now let’s find out how much money Geoffrey has left by subtracting his spending from his starting amount of cash: 125€ - 105€ = 20€. The answer is 20.
Q: Vanessa wants to buy a dress she saw at the mall, which costs $80, and she already has $20 in savings. Her parents give her $30 every week, but she also spends $10 each weekend at the arcades. How many weeks will she have to wait until she can gather enough money to buy the dress?
A: Vanessa needs $80 – $20 = $60 to buy the dress. She manages to gather $30 - $10 = $20 each week. The number of weeks she has to wait is 60 ÷ 20 = 3 weeks. The answer is 3.
Question: A grocery store has 4 kinds of jelly. They sell grape jelly twice as much as strawberry jelly, and raspberry jelly twice as much as plum jelly. The raspberry jelly sells a third as much as the grape jelly. If they sold 6 jars of plum jelly today, how many jars of strawberry jelly did they sell?
Answer: They sell twice as much raspberry jelly as plum jelly, so they sold 2 * 6 = 12 jars of raspberry jelly today. The raspberry jelly sells a third as much as the grape jelly, so they sold 12 * 3 = 36 jars of grape jelly today. The grape jelly sells twice as much as the strawberry jelly, so they sold 36 / 2 = 18 jars of strawberry jelly today. The answer is 18.
Q: Bella, Monica, and Rachel are friends who like jewelry. Bella has 10 earrings, which is 25% of Monica's earrings, and Monica has twice as many earrings as Rachel. How many earrings do all of the friends have?
A:
Bellas has 100% / 25% = 4 times less earrings than Monica. This means that Monica has 10 * 4 = 40 earrings. Rachel has two times fewer earrings than Monica, which means 40 / 2 = 20 earrings. So all three friends, have a total of 10 + 40 + 20 = 70 earrings. The answer is 70.