POST UTME RHEMA UNIVERSITY 2023 Economics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A firm's production function is given by Q = 3L^0.5K^0.5. If the firm's current input prices are w = ₦150 and r = ₦300, and the current output price is p = ₦600, calculate the firm's optimal input mix (L, K) u\sing the Hotelling's Lemma. Assume that the firm's objective is to maximize profits.
A. L = 150, K = 75
B. L = 75, K = 150
C. L = 225, K = 150
D. L = 150, K = 225
Question 2
A firm's production function is given by Q = 3L^0.5K^0.5. If the firm's current input prices are w = ₦250 and r = ₦500, and the current output price is p = ₦1000, calculate the firm's optimal input mix (L, K) u\sing the Hotelling's Lemma. Assume that the firm's objective is to maximize profits.
A. L = 250, K = 125
B. L = 125, K = 250
C. L = 312.5, K = 125
D. L = 125, K = 312.5
Question 3
A country's GDP is given by the equation GDP = C + I + G + \( X - M \). If the country's current GDP is 100 billion, and the values of C, I, and G are 20, 30, and 10 billion respectively, what is the value of net exports \( X - M \)?
A. 20 billion
B. 30 billion
C. 40 billion
D. 50 billion
Question 4
A firm's production function is given by Q = 2L^2 + 5K, where Q is output, L is labor, and K is capital. Determine the returns to scale.
A. Increa\sing returns to scale
B. Decrea\sing returns to scale
C. Cons\tant returns to scale
D. No returns to scale
Question 5
A consumer's utility function is given by U = 2x + 3y. If the consumer's budget constraint is 2x + 3y = 12, and the price of good x is 2, what is the consumer's optimal consumption bundle?
A. x = 2, y = 4
B. x = 4, y = 2
C. x = 6, y = 0
D. x = 0, y = 6
Question 6
A country's GDP grows at a rate of 5% per annum. If the population of the country grows at a rate of 2% per annum, what is the rate of growth of per capita income?
A. 3%
B. 4%
C. 5%
D. 6%
Question 7
A firm's demand function is given by Q = 100 - 2P. If the firm's current price is 20, what is the firm's current quantity demanded?
A. 40
B. 60
C. 80
D. 100
Question 8
A country's GDP at market price is ₦10 trillion. The government imposes a 10% Value Added Tax (VAT) on all goods and services. Calculate the country's GDP at factor \cost.
A. ₦9 trillion
B. ₦9.5 trillion
C. ₦10 trillion
D. ₦10.5 trillion
Question 9
A monopolistically competitive firm faces a downward-sloping demand curve. U\sing the concept of marginal revenue, explain why the firm will produce at the level where MR = MC.
A. The firm will produce at the level where MR = MC because it maximizes profit.
B. The firm will produce at the level where MR = MC because it minimizes \cost.
C. The firm will produce at the level where MR = MC because it faces a downward-sloping demand curve.
D. The firm will produce at the level where MR = MC because it is a monopolistically competitive firm.
Question 10
A monopolist faces a demand curve given by Q = 100 - 2P and a marginal revenue function MR = 20 - 2Q. Determine the profit-maximizing price and quantity.
A. ₦40, 60 units
B. ₦60, 40 units
C. ₦80, 20 units
D. ₦20, 80 units
Question 11
A firm operating in a perfectly competitive market produces two goods, A and B. The production of good A generates a positive externality for the production of good B. U\sing the concept of opportunity \cost, explain why the firm's production of good A will increase if the government imposes a tax on the production of good B.
A. The firm will increase production of good A to compensate for the decrease in the production of good B.
B. The firm will decrease production of good A to avoid the tax on good B.
C. The firm will increase production of good A to take advantage of the positive externality.
D. The firm will decrease production of good A to reduce the opportunity \cost of producing good B.
Question 12
A country's balance of payments is given by the following accounts: Current account: -₦100, Capital account: +₦200, Financial account: +₦300. Determine the overall balance.
A. +₦400
B. +₦300
C. +₦200
D. +₦100
Question 13
Consider a firm operating in a perfectly competitive market with a given production function Q = 2L^0.5K^0.5. If the firm's current input prices are w = ₦100 and r = ₦200, and the current output price is p = ₦500, calculate the firm's optimal input mix (L, K) u\sing the Hotelling's Lemma. Assume that the firm's objective is to maximize profits.
A. L = 100, K = 50
B. L = 50, K = 100
C. L = 200, K = 100
D. L = 100, K = 200
Question 14
A country's GNP at market price is ₦12 trillion. The government imposes a 15% Value Added Tax (VAT) on all goods and services. Calculate the country's GNP at factor \cost.
A. ₦10.5 trillion
B. ₦11 trillion
C. ₦11.5 trillion
D. ₦12 trillion
Question 15
The government of Nigeria has introduced a new tax policy aimed at increa\sing revenue from the agricultural sector. The policy includes a 10% tax on all agricultural produce sold in the market. If the total revenue from the sale of agricultural produce is ₦1,500,000, what is the amount of tax paid by the farmers?
A. ₦150,000
B. ₦1,500,000
C. ₦1,000,000
D. ₦200,000

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