POST UTME COVENANT UNIVERSITY 2020 Economics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A firm is producing a good with a production function Q = 3L^0.5K^0.5, where L is labor and K is capital. If the price of labor is $10 per hour and the price of capital is $20 per unit, and the firm is currently producing 100 units of output, what is the marginal product of capital (MPC) in terms of output?
A. 0.5L^0.5K^0.5
B. L^0.5K^0.5
C. 2L^0.5K^0.5
D. 4L^0.5K^0.5
Question 2
A firm is producing a good u\sing a production function Q = 2L^0.5K^0.5. If the price of labor is ₦100 per unit and the price of capital is ₦200 per unit, and the firm is currently producing 10 units of the good, what is the marginal product of labor?
A. 0.5
B. 1
C. 2
D. 3
Question 3
A firm is producing a good u\sing two inputs, labor and capital. The production function is given by Q = 2L^0.5K^0.5. If the price of labor is ₦100 per unit and the price of capital is ₦200 per unit, and the firm is currently producing 10 units of the good, what is the total \cost of production?
A. ₦1,000
B. ₦2,000
C. ₦3,000
D. ₦4,000
Question 4
The Nigerian government has introduced a policy to promote industrialization in the country. The policy involves providing subsidies to firms that produce goods u\sing local raw materials. If a firm is producing a good u\sing 100 units of local raw materials and the subsidy is ₦50 per unit, what is the total subsidy received by the firm?
A. ₦5,000
B. ₦10,000
C. ₦15,000
D. ₦20,000
Question 5
A consumer's utility function is given by U(x, y) = 2x + 3y, where x and y are the quantities of two goods consumed. Determine the marginal rate of substitution of good x for good y when the consumer is at the point (2, 3).
A. 1
B. 2
C. 3
D. 4
Question 6
A consumer has the following utility function: U(x,y) = 2x + 3y. If the prices of x and y are $2 and $3 respectively, and the consumer has a budget of $10, what is the optimal bundle of x and y?
A. (2,2)
B. (3,1)
C. (4,0)
D. (0,4)
Question 7
A firm's production function is given by Q = 2L^\( 2/3 \)K^\( 1/3 \), where L is labor and K is capital. If the firm's output is 8 units, and labor is 4 units, what is the value of capital (K)?
A. 1
B. 2
C. 4
D. 8
Question 8
A firm produces a product with a production function Q = 2L^0.5K^0.5, where L is labor and K is capital. If the price of labor is ₦100 per unit and the price of capital is ₦200 per unit, find the \cost-minimizing combination of labor and capital.
A. L = 100, K = 100
B. L = 200, K = 50
C. L = 50, K = 200
D. L = 100, K = 200
Question 9
A firm is producing a good u\sing a production function Q = 2L^0.5K^0.5. If the price of labor is ₦100 per unit and the price of capital is ₦200 per unit, and the firm is currently producing 10 units of the good, what is the total revenue?
A. ₦1,000
B. ₦2,000
C. ₦3,000
D. ₦4,000
Question 10
Consider a firm operating in a perfectly competitive market with a production function given by Q = 2L^0.5K^0.5. If the price of the good is $10 and the wage rate is $5 per unit of labor, what is the optimal level of labor to hire?
A. 10 units
B. 20 units
C. 30 units
D. 40 units
Question 11
A consumer has an indifference curve given by U = 2x^0.5y^0.5, where x is the quantity of good X and y is the quantity of good Y. If the price of good X is ₦50 per unit and the price of good Y is ₦100 per unit, find the consumer's optimal bundle of goods.
A. x = 100, y = 50
B. x = 50, y = 100
C. x = 200, y = 25
D. x = 25, y = 200
Question 12
A firm's \cost function is given by C(x) = 100 + 2x + 0.5x^2, where x is the number of units produced. Determine the marginal \cost when the firm produces 20 units.
A. ₦150
B. ₦200
C. ₦250
D. ₦300
Question 13
A consumer's utility function is given by U = x^2 + 2y^2, where x and y are the quantities of two goods. If the consumer's income is ₦1000, and the prices of the two goods are ₦5 and ₦10 respectively, what is the consumer's optimal bundle of goods?
A. (10, 5)
B. (5, 10)
C. (15, 5)
D. (5, 15)
Question 14
A monopolistically competitive firm faces a demand curve with a cons\tant elasticity of -2. If the firm's marginal revenue (MR) is given by MR = 100 - 2Q, where Q is the quantity sold, what is the firm's optimal quantity?
A. 50 units
B. 75 units
C. 100 units
D. 125 units
Question 15
A firm has a production function given by \( Q = 2L^{1/2}K^{1/2} \). If the firm's labor and capital inputs are \( L = 4 \) and \( K = 9 \), respectively, what is the firm's output?
A. \( Q = 12 \)
B. \( Q = 16 \)
C. \( Q = 20 \)
D. \( Q = 24 \)

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