Q: A tree had 1000 leaves before the onset of the dry season, when it sheds all its leaves. In the first week of the dry season, the tree shed 2/5 of the leaves. In the second week, it shed 40% of the remaining leaves. In the third week, the tree shed 3/4 times as many leaves as it shed on the second week. Calculate the number of leaves the tree hadn't shed by the third week.
A: In the first week, the tree shed 2 / 5 * 1000 = 400 leaves. The number of leaves remaining on the tree at the end of the first week is 1000 - 400 = 600. In the second week, the tree shed 40 / 100 * 600 = 240 leaves. The number of leaves remaining on the tree is 600 - 240 = 360. The third week the tree shed 3 / 4 of its leaves, a total of 3 / 4 * 360 = 270 leaves. The number of leaves remaining on the tree is 360 - 270 = 90 leaves. The answer is 90.
Question: Mr. Bodhi is transporting some animals using a yacht across a river. He has 20 cows, 15 foxes and three times as many zebras as foxes. To balance the yacht to ensure a smooth sail across the river, the total number of animals in the yacht needs to be 100. If he decides to add sheep to the yacht to make the yacht sail-worthy, how many sheep did he add to the yacht?
Answer: The number of cows and foxes in the yacht is 20 + 15 = 35. Mr. Bodhi also has three times as many zebras as foxes in the yacht, equal to 3 * 15 = 45 zebras. The number of animals in the yacht so far is 35 + 45 = 80. To balance the yacht, Mr. Bodhi needs to add 100 - 80 = 20 sheep. The answer is 20.
[Question]Meghan had money in the following denomination: 2 $100 bills, 5 $50 bills, and 10 $10 bills. How much money did he have altogether?
[Answer]Total value of $100 bills is 2 × $100 = $200. Total value of $50 bills is 5 × $50 = $250. Total value of $10 bills is 10 × $10 = $100. Final total value is $200 + $250 + $100 = $550. The answer is 550.
Q: Jed collects stamp cards. Every week, he gets 6 cards. But every two weeks, he gives 2 cards to his friends. If Jed started with 20 cards, after how many weeks will he have a total of 40 cards?
A: In the first week, Jed has 20 + 6 = 26 cards. In the second week, he has 26 + 6 = 32 cards. But he is left with 32 - 2 = 30 cards on the 2nd week after giving 2 cards to his friend. Then Jed has 30 + 6 = 36 cards on the 3rd week. He has 36 + 6 = 42 cards on the 4th week. After giving his friend 2 cards, he is then left with 42 - 2 = 40 cards on the 4th week. Hence, Jed will have a total of 40 cards in 4 weeks. The answer is 4.
Question: Lars owns a bakeshop. She can bake 10 loaves of bread within an hour and 30 baguettes every 2 hours. If she bakes 6 hours a day, how many breads does she makes?
Answer: Lars can bake 10 x 6 = 60 loaves of bread every day. She can also bake 30 x 3 = 90 baguettes every day. Therefore the total bread she can bake is 60 + 90 = 150. The answer is 150.
Q: In a restaurant, a burger costs $9, and a pizza twice as much. How much would cost one pizza and three burgers?
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.
user
One pizza costs twice as much as the burger, which means 9 * 2 = $18. Three burgers would cost 9 * 3 = $27. So one pizza and three burgers would cost in total 18 + 27 = $45. The answer is 45.