Q: Mark is filling a punch bowl that can hold 16 gallons of punch. He fills it part way, then his cousin comes along and drinks half the punch in the bowl. Mark starts to refill the bowl and adds 4 more gallons, but then his friend Sally comes in and drinks 2 more gallons of punch. After that, Mark has to add 12 gallons of punch to completely fill the bowl. How much punch did Mark initially add to the bowl?
A: 4
Step-by-step reasoning process: First, figure out how much punch was left in the bowl before Mark refilled it by subtracting the 12 gallons he added from the bowl's total capacity: 16 - 12 = 4 gallons. Next, figure out how much punch was in the bowl before Sally came along: 4 + 2 = 6 gallons. Next, figure out how much punch was in the bowl before Mark started to refill it: 6 - 4 = 2 gallons. Finally, multiply that amount by 2 to find out how much punch there was before the cousin drank half: 2 * 2 = 4 gallons.


Q: Dexter went to the mall and saw that Apple products are on sale. He wants to buy an iPhone 12 with a 15% discount and an iWatch with a 10% discount. The price tag shows that an iPhone 12 costs $800 while an iWatch costs $300. Upon check out, he will receive a further 2% cashback discount. How much would the items cost in total after the discount and cashback?
A: 931
Step-by-step reasoning process: The discount for an iPhone 12 is $800 x 15 / 100 = $120. So, the iPhone will now cost $800 - $120 = $680. The discount for an iWatch is $300 x 10 / 100 = $30. So, the iWatch will now cost $300 - $30 = $270. The total cost of the iPhone and iWatch is $680 + $270 = $950. The cashback will be $950 x 2 / 100 = $19. Thus, Dexter will only pay $950 - $19 = $931.


Q: Sally sold 20 cups of lemonade last week. She sold 30% more lemonade this week. How many cups of lemonade did she sell in total for both weeks?
A: 46
Step-by-step reasoning process: If Sally sold 30% more lemonade this week, she sold 20 * 30 / 100 = 6 more cups this week. This week, Sally sold 20 + 6 = 26 cups of lemonade. In total for both weeks, Sally sold 20 + 26 = 46 cups of lemonade.


Q: Amanda needs 12 more marbles to have twice as many marbles as Katrina, and Mabel has 5 times as many marbles as Katrina. If Mabel has 85 marbles, how many more marbles does Mabel have than Amanda?
A: 63
Step-by-step reasoning process: Katrina has 85 / 5 = 17 marbles. Twice as many marbles as Katrina is 17 x 2 = 34. Amanda has 34 - 12 = 22 marbles. Mabel has 85 - 22 = 63 more marbles than Amanda.