Q: Jacob has been tasked with a project to write up an urban plan proposal that will be used to construct a new city. He uses Pittsburg city as a reference which has 2000 stores, 500 hospitals, 200 schools, and 20 police stations. If the new city should have half the number of stores, twice as many hospitals, 50 fewer schools, and 5 more police stations, what is the total number of buildings required for this project?
A: The number of stores required for the new city is 2000 / 2 = 1000 stores. The number of hospitals required for the new city is 2 * 500 = 1000 hospitals. The number of schools required for the new city is 200 - 50 = 150 schools. The number of police stations required for the new city is 20 + 5 = 25 police stations. The total number of buildings required for this new city project 1000 + 1000 + 150 + 25 = 2175 buildings. The answer is 2175.

Q: A plane flies between 4 cities; A, B, C and D. Passengers board and alight at each airport in every city when it departs and lands, respectively. The distance between city A and city B is 100 miles. The distance between city B and city C is 50 miles more than the distance between city A and city B. The distance between city C and city D is twice the distance between city B and city C. Calculate the total distance between city A and city D.
A: Since the distance between city A and B is 100 miles, and city B and C are 50 more miles apart than city A and B, then city B and C are 100 + 50 = 150 miles apart. The plane's total flying distance between cities A and C is 100 + 150 = 250 miles. The distance between city C and city D is twice the distance between city B and city C, meaning city C and city D are 2 * 150 = 300 miles apart. The plane flies a distance of 250 + 300 = 550 miles from city A to city D. The answer is 550.

Q: Felix is chopping down trees in his backyard. For every 13 trees he chops down he needs to get his axe resharpened. It cost him $5 to sharpen his axe. If he spends $35 on axe sharpening, at least how many trees has he chopped down?
A:
He has sharpened in 7 times because 35 / 5 = 7. He has chopped down 91 trees because 7 x 13 = 91. The answer is 91.