Q: James visits 20 houses to try and make a sale. He manages to sell something in every house. The next day he visits twice as many houses but only sold to 80% of houses. If he sold two things at each house in each of the two days, how many items did he sell?
A: The second day he visited 20 * 2 = 40 houses. So he sold things at 40 * .8 = 32 houses. So in total he sold things at 20 + 32 = 52 houses. That means he sold 52 * 2 = 104 things. The answer is 104.
Question: Ryan works in an office that has an even number of men and women working there. Ryan participates in a meeting composed of 4 men and 6 women who are pulled from the office floor.  This reduces the number of women working on the office floor by 20%. How many people work at Ryan's office?
Answer: Since 6 women are 20% of the total number of women working there, that means there are 6 * 5 = 30 women working there in total. Since there are an even number of women and men working in the office, that means there are 30 * 2 = 60 people working there in total, since there are 2 sexes. The answer is 60.
[Question]Xavier is twice as old as Yasmin is. Xavier will 30 years old in six years. What is the total of their ages now?
[Answer]If in six years Xavier will be 30 years old, he is 30 - 6 = 24 years old now. If Xavier is twice as old as Yasmin, Yasmin is 24 / 2 = 12 years old. The total of their ages now is 12 + 24 = 36 years. The answer is 36.
Q: Adam teaches 50 students a year. How many students will Adam teach in 10 years if in the first year he only teaches 40 students?
A: Adam will teach 50 * 9 = 450 students in 9 years. So, in 10 year Adam will teach 450 + 40 = 490 students. The answer is 490.
Question: If one Burmese python can eat one 50-cm alligator per week, how many Burmese pythons would it take to eat fifteen 50-centimeter alligators in three weeks?
Answer: 15 alligators eaten over a period of 3 weeks is a rate of 15 / 3 = 5 alligators per week. Under the normal rate of 1 alligator per week per python, it would take 5 / 1 = 5 pythons to eat 15 alligators in 3 weeks. The answer is 5.
Q: In the fall, a tree drops a tenth of its initial quantity of leaves each day over the course of four days, then abruptly drops the rest on the fifth day. If it had 340 leaves before they started to fall, how many leaves does it drop on the fifth day?
A:

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.
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The tree drops 340 / 10 = 34 leaves for each of the four days. Thus, it drops 34 * 4 = 136 leaves over the first four days. Therefore, it drops 340 - 136 = 204 leaves on the fifth day. The answer is 204.