Q: Aliens and Martians have different numbers of limbs. Aliens have three arms and eight legs, while Martians have half as many legs and twice as many arms. How many more limbs will five aliens have than five Martians?
A: Martians have 2 * 3 = 6 arms each. They have 8 / 2 = 4 legs each. Five martians will have 5 * 6 + 5 * 4 = 30 + 20 = 50 limbs. Five aliens will have 5 * 3 + 5 * 8 = 15 + 40 = 55 limbs. Five aliens will have 55 - 50 = 5 more limbs than five Martians. The answer is 5.
Question: A local school is holding a food drive. Mark brings in 4 times as many cans as Jaydon. Jaydon brings in 5 more than twice the amount of cans that Rachel brought in. If there are 135 cans total, how many cans did Mark bring in?
Answer: Let x represent the number of cans Rachel brought in. Jaydon:5 + 2x. Mark:4(5 + 2x) = 20 + 8x. Total:x + 5 + 2x + 20 + 8x = 135. 11x + 25 = 135. 11x = 110. x = 10. Mark: 20 + 8(10) = 100 cans. The answer is 100.
[Question]Danny has 3 bottles of soda. He drinks 90% of one bottle and gives 70% of the other two bottles to his friends. How much soda does Danny have left, expressed as a percentage of a bottle?
[Answer]First find how much soda Danny drank: 1 bottle * .9 = .9 bottles. Then find how much soda Danny gave to his friends: 2 friends * 1 bottle / friend * .7 = 1.4 bottles. Now subtract the soda drunk and given away to find the remaining amount of soda: 3 bottles - .9 bottles - 1.4 bottles = .7 bottles * 100% = 70%. The answer is 70.
Q: John decides to take up illustration. He draws and colors 10 pictures. It takes him 2 hours to draw each picture and 30% less time to color each picture. How long does he spend on all the pictures?
A: The coloring takes 2 * .3 = .6 hours less than the drawing. So it takes 2 - .6 = 1.4 hours per picture. So it takes him 2 + 1.4 = 3.4 hours per picture. That means it takes 3.4 * 10 = 34 hours. The answer is 34.
Question: Hannah fills her kids' stockings with 4 candy canes, 2 beanie babies and 1 book. If she has 3 kids, how many stocking stuffers does she buy total?
Answer: First find the total number of stocking stuffers one kid gets: 4 candy canes + 2 beanie babies + 1 book = 7 stocking stuffers. Then multiply the number of stocking stuffers per kid by the number of kids to find the total number: 7 stocking stuffers / kid * 3 kids = 21 stocking stuffers. The answer is 21.
Q: Hazel walked 2 kilometers in the first hour. If she walked twice as far in the second hour, how far did she walk for 2 hours?
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
Hazel walked 2 x 2 = 4 kilometers in the second hour. So, she walked 2 + 4 = 6 kilometers for 2 hours. The answer is 6.