[Question]A new book sold 15 copies at the bookstore on Wednesday. On Thursday the book sold three times that many copies. On Friday the book sold one-fifth the number of copies it did on Thursday. How many copies of the book did the bookstore sell by Friday?
[Answer]On Thursday 15 * 3 = 45 books were sold. On Friday 45 / 5 = 9 books were sold. Adding up all three days 15 + 45 + 9 = 69 books were sold by Friday. The answer is 69.
Q: For every 1 minute that Carlotta sings on stage during the final opera performance, she spends an additional 3 minutes practicing and 5 minutes throwing temper tantrums. If her final stage performance is 6 minutes long, what is the total combined amount of time, in minutes, that she spends practicing, throwing tantrums, and singing in the final stage performance?
A: For each 6 minutes she performs, Carlotta spends 6 * 3 minutes = 18 minutes practicing. For each 6 minutes she performs, Carlotta throws tantrums for 6 * 5 minutes = 30 minutes. Thus, in total, for each 6 minutes of performance time, she spends 18 minutes + 30 minutes + 6 minutes = 54 minutes on all three activities. The answer is 54.
Question: Claire wants to make 2 cakes for her mother. Two packages of flour are required for making a cake. If 1 package of flour is $3, how much does she pay for the flour that is enough to make 2 cakes?
Answer: She needs 2 * 2 = 4 packages of flour for 2 cakes. 4 packages of flour cost 4 * $3 = $12. The answer is 12.
[Question]Every time she goes to the store, Felicity gets a lollipop. After she finishes them, she uses the sticks to build a fort. The fort needs 400 sticks to finish it. Her family goes to the store three times a week and she always goes. If the fort is 60% complete, how many weeks has Felicity been collecting lollipops for?
[Answer]She has 240 sticks because 400 x .6 = 240. She has been going to the store for 80 weeks because 240 / 3 = 80. The answer is 80.
Q: A psychiatrist has 4 patients that need 25 sessions in total. One of the patients needs 6 sessions. Another patient needs 5 more than that. How many sessions would the remaining patients need?
A: The second patient needs 6 + 5 = 11 sessions. The first two patients need 6 + 11 = 17 sessions total. 25 - 17 = 8 sessions. The answer is 8.
Question: Grady has 20 red numbered cubes and 15 blue numbered cubes. He gives his friend Gage 2/5 of his red numbered cubes and 1/3 of the blue numbered cubes. If Gage had 10 red numbered cubes and 12 blue numbered cubes, find the total number of cubes Gage has?
Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Grady gave 2 / 5 * 20 cubes = 8 of his red numbered cubes to Gage. If Gage initially had 10 red numbered cubes, his total number of red numbered cubes became 10 cubes + 8 cubes = 18 cubes after Grady gave him 8 more. Grady also gave 1 / 3 * 15 cubes = 5 blue numbered cubes to Gage. This increased Gage's total number of blue numbered cubes to 12 cubes + 5 cubes = 17 cubes. The total number of cubes Gage has is now 17 cubes + 18 cubes = 35 cubes. The answer is 35.