Question: Alex has some new shirts. Joe has 3 more new shirts than Alex. Ben has eight more new shirts than Joe. If Ben has 15 new shirts, how many new shirts does Alex have?
Answer: Joe has 15 - 8 = 7 new shirts. Alex has 7 - 3 = 4 new shirts. The answer is 4.
[Question]Jame gets 20 singing lessons. He gets the first lesson free and after the first 10 paid lessons he only needs to pay for every other lesson. Each lesson is $5. His uncle pays for half. How much does James pay?
[Answer]The first lesson is free. The lessons 2 to 11 cost 10 * $5 = $50. He then had 9 remaining lessons where he had to pay for every other one. So he pays for lessons 13,15,17&19 = 4 lessons. Those lessons cost 4 * $5 = $20. So in total, the cost was $50 + $20 = $70. So he paid $70 / 2 = $35. The answer is 35.
Q: Meso can type 15 pages in 5 minutes. Tyler can type the same 15 pages in 3 minutes. How many minutes would it take Meso and Tyler to type 40 pages working together?
A: Meso types 15 pages / 5 minutes = 3 page per minute. Tyler types 15 pages / 3 minutes = 5 pages per minute. Together they can type 3 + 5 = 8 pages per minute. Working together, it would take them 40 pages / 8 pages per minute = 5 minutes. The answer is 5.
Question: A vendor bought apples at 2 for $3 and plans to sell them at 5 for $10. He also bought 3 oranges for $2.70 and plans to sell them at $1 each. How much is his profit if he sells 5 apples and 5 oranges?
Answer: A vendor bought each apple for $3 / 2 = $1.50. He will sell each apple at $10 / 5 = $2 each. His profit for each apple is $2 - $1.50 = $0.50. His total profit for 5 apples is $0.50 x 5 = $2.50. He bought each orange for $2.70 / 3 = $0.90. His profit for each orange is $1 - $0.90 = $0.10. His total profit for 5 oranges is $0.10 x 5 = $0.50. Therefore, his total profit for selling 5 apples and 5 oranges is $2.50 + $0.50 = $3. The answer is 3.
[Question]Gnuff charges a flat rate of $20 per tutoring session plus $7 per minute. The total amount paid for Gnuff for tutoring for one session is $146. How many minutes did Gnuff tutor for?
[Answer]First find the amount paid just for the per - minute fee, which is $146 - $20 = $126. Then divide that number by the per - minute rate to find the number of minutes: $126 / $7 per minute = 18 minutes. The answer is 18.
[Question]Osborn is testing a new way to get dressed in the morning on school days so he goes faster and can get up later. He tracks his time for the week and on Monday is takes him 2 minutes. On Tuesday it takes him 4 minutes. On Wednesday it takes him 3 minutes. On Thursday it takes him 4 minutes. Before Friday arrives he looks at his old way of getting dressed and sees that it was taking him 3 minutes on average to get dressed. How fast does he have to get dressed on Friday so his weekly average ties his old method?
[Answer]
If it takes on average 3 minutes to get dressed, then it takes 15 minutes total on the school week because 5 x 3 = 15. Thus far this week it has taken him 13 minutes to get dressed because 2 + 4 + 3 + 4 = 13. To tie his previous method, he needs to take 2 minutes on Friday because 15 - 13 = 2. The answer is 2.