Reasoning and answer: Kristine spends $3 + $1 = $4. Three sets of barrettes cost 3 x $3 = $9. Crystal spends $9 + $1 = $10. Therefore, the two girls spend $4 + $10 = $14.
The answer: 14
What was the question?
Question: One set of barrettes costs $3 each, and one comb costs $1 each. Kristine buys one set of barrettes and one comb. Crystal buys three sets of barrettes and one comb. How much do the two girls spend altogether?


Del = 23 * 2 = 46 oranges. 107 - 46 = 61 oranges. Juan picked 61 oranges.
The answer: 61
Reverse engineering the question: A total of 107 oranges are picked by Del and Juan. Del picked 23 on each of 2 days and Juan picked the rest. How many oranges did Juan pick?


Reasoning and answer: Faith must pay $28 + $5 = $33 for the flour and cake stand. Her two $20 bills amount to $20 x 2 = $40. So, she gave the cashier a total of $40 + $3 = $43. Hence, her change is $43 - $33 = $10.
The answer: 10
What was the question?
Question: Faith went to a baking shop and bought flour that cost $5 and a cake stand that costs $28. She then gave the cashier two $20 bills and $3 in loose coins. How much change will she receive?


First find half the number of guests at Carly's party: 30 guests / 2 = 15 guests. Then multiply that number by 2 for the number of burgers half the guests want: 15 guests * 2 burgers / guest = 30 burgers. Then add the 15 burgers for the 15 guests who only want 1 to find the total number of burgers: 30 burgers + 15 burgers = 45 burgers. Then divide the total number of burgers by the number of burgers Carly can cook at once to find the number of batches she cooks: 45 burgers / 5 burgers / batch = 9 batches. Then multiply the number of sides per burger by the cooking time per side to find each burger's total cook time: 4 minutes / side * 2 sides = 8 minutes. Finally, multiply each batch's cook time by the number of batches to find the total cook time: 8 minutes / batch * 9 batches = 72 minutes.
The answer: 72
Reverse engineering the question: Carly is making burgers for a neighborhood BBQ. Each burger needs to be cooked for 4 minutes on each side. Carly can fit 5 burgers on the grill at once. If half her 30 guests want 2 burgers and the other half each want 1, how long will it take Carly to cook all the burgers?


Reasoning and answer: 40 students want oatmeal raisin because 40 x .1 = 4. He makes 8 oatmeal raisin cookies because 4 x 2 = 8.
The answer: 8
What was the question?
Question: Giorgio plans to make cookies for his class. There are 40 students and he plans to make 2 cookies per student. If 10% of his classmates want oatmeal raisin, then how many oatmeal raisin cookies will Giorgio make?


Reasoning and answer: The six T - shirts cost 6 x $8 = $48. The four sweaters cost 4 x $18 = $72. And five jackets normally cost 5 x $80 = $400. So, a discount of 10 / 100 x $400 = $40 for the five jackets. Thus, the selling price of the five jackets is $400 - $40 = $360. Hence, the total cost of all the items is $48 + $72 + $360 = $480. The sales tax is equal to 5 / 100 x $480 = $24. Therefore, Kevin has to pay $480 + $24 = $504. including the sales tax.
The answer: 504
What was the question?
Question:
A shopping center sells T-shirts at $8 each, a sweater at $18, and a jacket at $80. The jacket is on sale with a 10% discount. The sales tax is 5%. Kevin wants to buy six T-shirts, four sweaters, and five jackets for his children. How much does Kevin have to pay for all the items, including the sales tax?