Mid-term checking problems of
Intermediate Economics
Answer Sheet
1. Multiple Choices (20×2=40)
快速瘦肚子3天见效 (1) | (2) | (3) | (4) | (5) | (6) | (7) | 炒饼怎么做(8) | (9) | (10) |
A | C | B | B 制约的近义词 | C | D | B | A | A | D |
(11) | (12) | (13) | (14) | (15) | (16) | (17)男孩的英语单词 | (18) | (19) | (20) |
B | A | B | A | D | A | B | C | B | C |
| | | | | | | | | |
2. True or Fal (15×1=15)
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
F | T | F | T | F | F | T | T怎样做饺子皮 | F | T |
(11) | (12) | (13) | (14) | (15) | | | | | | 爸爸我想对你说
T | T | F | F | T | | | | | |
| | | | | | | | | |
1. Multiple Choices (20×2=40)
(1) If she spends all of her income on lemons and tangerines, Isabella can just afford 30 lemons and 8 tangerines per day. She could also u her entire budget to buy 6 lemons and 14 tangerines per day. The price of lemons is 6 guineas each. How much is Isabella's income per day?
(a) 372 guineas (b) 377 guineas (c) 371 guineas (d) 363 guineas
(2) In year 1, the price of good x was 1, the price of good y was 1, and income was 30. In year 2, the price of x was 6, the price of good y was 5, and income was 30. On a graph with x on the horizontal axis and y on the vertical, the new budget line is:
(a) flatter than the old one and lies below it.
(b) flatter than the old one and lies above it.
(c) steeper than the old one and lies below it.
(d) steeper than the old one and lies above it.
(3) Fanny consumes goods x and y. Her indifference curves are described by the formula y =k/(x + 7). Higher values of k correspond to better indifference curves. Which of the following is true?
(a) Fanny likes good y and hates good x.
(b) Fanny prefers bundle (8, 9) to bundle (9, 8).
(c) Fanny prefers bundle (9, 5) to bundle (5, 9).
(d) Fanny likes good x and hates good y.
(4) Manuel consumes only apples and bananas. He prefers more apples to less, but he gets tired of bananas. If he consumes fewer than 17 bananas per week, he thinks that one banana is a perfect substitute for one apple. But you would have to pay him one apple for each banana beyond 17 that he consumes. The indifference curve that pass t
hrough the consumption bundle with 25 apples and 26 bananas also pass through the bundle with A apples and 11 bananas, where A equals:
(a) 21 (b) 22 (c) 24 (d) 26
(5) Chen has preferences reprented by the utility function: U(x, y) =. If x is on the horizontal axis and y is on the vertical axis, what is the slope of his indifference curve at the point (9, 4)?
(a) The slope is -4. (b) The slope is -6/4.
七年级寒假作业(c) The slope is -1/6 (d) The slope is -1/4.
(6) Raymond's preferences are reprented by the utility function U(x; y) = x=y if y > 0 and U(x; y) = 0 if y = 0.
(a) Raymond has indifference curves that are rectangular hyperbolas.
(b) Raymond prefers more of each good to less.
(c) Raymond has quasi-linear preferences.
(d) Raymond has indifference curves that are upward sloping straight lines if y > 0.
(7) Hans has 27 dollars, which he decides to spend on x and y. Commodity x costs $16 per unit and commodity y costs $10 per unit. He has the utility function U(x; y) = 5x2 + 2y2 and he can purcha fractional units of x and y.
(a) Hans will choo only x.
(b) Hans will choo only y.
(c) Hans will choo some of each commodity, but more y than x.
(d) Hans will choo some of each commodity, but more x than y.
(8) Paul's utility function is. Simon's utility function is. Paul and Simon have the same income and face the same prices. Which of the following is true?
(a) Paul and Simon will demand the same amount of good x.
(b) Paul will demand more y than Simon.
(c) Simon will demand more y than Paul.
(d) Each will prefer the other's consumption bundle to his own.
patient
(9) Daisy received a tape recorder as a birthday gift and is not able to return it. Her utility function is U(x, y, z) = x+z1/2f(y) where z is the number of tapes she buys, y is the number of tape recorders she has and x is the amount of money she has left to spend. f(y) = 0 if y < 1 and f(y) = 32 if y is 1 or greater. The price of tapes is 4 and she can easily afford to buy dozens of tapes. How many tapes will she buy?
(a) 16 (b) 18 (c) 14 (d) 20
(10) Walt consumes strawberries and cream but only in the fixed ratio of three boxes of strawberries to two cartons of cream. At any other ratio, the excess goods are totally ul
ess to him. The cost of a box of strawberries is 10 and the cost of a carton of cream is 10. Walt's income is 200. Which of the following is true?
(a) Walt demands 10 cartons of cream.
(b) Walt demands 10 boxes of strawberries.
(c) Walt considers strawberries and cartons of cream to be perfect substitutes.
(d) Walt demands 12 boxes of strawberries
(11) Remember that the Laspeyres price index us the old quantities for the weights. In 1971, good x cost 3 and good y cost 1. The current price of good x is 3 and the current price of good y is 5. In 1971 the consumption bundle was (x, y) = (3, 5). The current consumption bundle is (x, y) = (9, 4). The Laspeyres index of current prices relative to 1971 prices is clost to which of the following numbers?
