[Question]Loris needs three more books to have the same number as Lamont, who has twice the number of books Darryl has. If Darryl has 20 books, calculate the total number of books the three have.
[Answer]Since Darryl has 20 books, Lamont, who has twice the number of books Darryl has, has 20 * 2 = 40 books. The total number of books both Darryl and Lamont has is 40 + 20 = 60 books. To have the same number of books as Lamont, Loris needs 3 more books, meaning she has 40 - 3 = 37 books. In total, the three has 60 + 37 = 97 books. The answer is 97.
Q: Tim does 100 tasks a day. They each pay $1.2. If he works 6 days a week how much does he make a week?
A: He makes 100 * 1.2 = $120 a day. So he makes 120 * 6 = $720. The answer is 720.
Question: Cathy and Chris got summer jobs at the cake shop and were supposed to work 20 hours per week each for 2 months. During that time, Chris got sick for one week and Cathy took her shifts. If there are four weeks in a month, how many hours did Cathy work during the 2 months?
Answer: There are 4 weeks in a month so Cathy and Chris were supposed to work for 4 weeks / month x 2 months = 8 weeks each. Since Chris got sick then Chris was only able to work for 8 weeks - 1 week = 7 weeks while Cathy worked for 8 weeks + 1 week = 9 weeks. Therefore, Cathy worked for 9 weeks x 20 hours / week = 180 hours. The answer is 180.
[Question]Carson counts 6 clouds that look like funny animals. His little brother counts three times as many clouds that look like dragons. How many clouds did they count in total?
[Answer]First find the total number of clouds Carson's brother counted: 6 clouds * 3 = 18 clouds. Then add the number Carson counted to find the total: 18 clouds + 6 clouds = 24 clouds. The answer is 24.
Q: A particular train has some passenger cars and a number of cargo cars equal to half the number of passenger cars plus three. If the total number of cars is 71, counting the engine and caboose, how many passenger cars are in the train?
A: First find the number of cars not counting the engine and caboose: 71 cars - 2 cars = 69 cars. Let p be the number of passenger cars and c be the number of cargo cars. We know that p + c = 69 and c = p / 2 + 3. Substituting the second equation into the first, we get p + p / 2 + 3 = 69. Combining like terms, we get 1.5p + 3 = 69. Subtracting 3 from both sides, we get 1.5p = 66. Dividing both sides by 1.5, we get p = 44. The answer is 44.
Question: Kirt has a $6000 monthly salary when he started his job. After a year of working, his salary increased by 30%. How much are his total earnings after 3 years?
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
His annual salary for the first year of working is 6000 x 12 = $72000. Kirt's monthly increase is $6000 x 30 / 100 = $1800. So, he received $6000 + $1800 = $7800 monthly on the second and third year of working. Kirt's annual salary in the second and third year was $7800 x 12 = $93600. . Thus, his total earning after 3 years is $72000 + $93600 + $93600 = $259200. The answer is 259200.