POST UTME AAUA 2023 Economics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A firm's production function is given by \( Q = 2L^2 + 3K \), where Q is the output, L is the labor, and K is the capital. If the firm's labor and capital are 10 and 5 respectively, what is the firm's output?
A. 50
B. 100
C. 200
D. 300
Question 2
A government is considering a tax on a particular good to raise revenue. If the tax is 10% of the price, and the demand for the good is given by Qd = 100 - 2P, what is the new equilibrium price?
A. 10
B. 15
C. 20
D. 25
Question 3
A country's GDP is calculated as the sum of its consumption, investment, government sp\ending, and net exports. If the country's GDP is ₦1,500 billion, and its government sp\ending is ₦300 billion, what is the sum of its consumption and investment?
A. ₦1,200 billion
B. ₦1,500 billion
C. ₦1,200 billion
D. ₦1,200 billion
Question 4
A firm produces two goods, A and B, u\sing two inputs, labor and capital. The production function for good A is given by Q_A = 2L^0.5 K^0.5, where Q_A is the quantity of good A produced, L is the amount of labor used, and K is the amount of capital used. If the firm uses 4 units of labor and 9 units of capital, what is the marginal product of labor?
A. 0.5
B. 1
C. 1.5
D. 2
Question 5
A central bank is considering a monetary policy to reduce inflation. It can either increase the reserve requirement or decrease the money supply. Which policy would be more effective in reducing inflation?
A. Increa\sing the reserve requirement
B. Decrea\sing the money supply
C. Both are equally effective
D. Neither is effective
Question 6
Consider a perfectly competitive market with multiple firms producing a homogeneous product. If the market demand curve is downward-sloping and the firms are price-takers, what is the likely outcome for the firms' profit margins?
A. Increased profit margins
B. Decreased profit margins
C. No change in profit margins
D. Uncertain profit margins
Question 7
A firm's demand curve is given by the equation Qd = 100 - 2P, where Qd is the quantity demanded and P is the price. If the firm's supply curve is Qs = 50 + 3P, find the equilibrium price and quantity.
A. ₦20, 60
B. ₦30, 70
C. ₦40, 80
D. ₦50, 90
Question 8
The Marshall-Lerner condition states that if the sum of the elasticities of demand for imports and exports is greater than 1, then a devaluation of the currency will lead to a
A. increase in the trade balance
B. decrease in the trade balance
C. increase in the current account deficit
D. decrease in the current account deficit
Question 9
A firm's revenue function is given by ( R(x) = 100x - 2x^2 ). If the firm's marginal revenue is $20, find the value of ( x )
A. 5
B. 10
C. 15
D. 20
Question 10
A country's balance of payments (BOP) is given by the equation BOP = X - M, where X is the value of exports and M is the value of imports. If the country's exports are ₦100 billion and imports are ₦120 billion, find the value of BOP.
A. -20
B. -10
C. 0
D. 10
Question 11
A consumer's utility function is given by U(x, y) = 2x + 3y. If the consumer's income is ₦1000 and the prices of x and y are ₦5 and ₦3 respectively, find the optimal bundle of x and y.
A. x = 40, y = 20
B. x = 20, y = 40
C. x = 30, y = 30
D. x = 10, y = 50
Question 12
A firm's revenue function is given by R = 2Q^2, where R is the revenue and Q is the output. If the firm wants to increase its revenue by 50%, what is the required percentage increase in output?
A. 25% increase in output
B. 50% increase in output
C. 25% increase in output
D. 50% increase in output
Question 13
A perfectly competitive market has a demand curve given by P = 100 - 2q and a supply curve given by P = 10 + q. Find the equilibrium price and quantity.
A. 80, 40
B. 60, 30
C. 40, 20
D. 20, 10
Question 14
A central bank is considering a monetary policy to reduce inflation. The money supply is given by the equation M = kPY, where M is the money supply, k is a cons\tant, P is the price level, and Y is the real GDP. If the central bank wants to reduce the money supply by 10%, what is the percentage change in the price level?
A. -5%
B. -10%
C. -15%
D. -20%
Question 15
A country's government imposes a tax on its citizens, which is a lump-sum tax of ₦100 per person. If the country has a population of 50 million people, what is the total tax revenue collected by the government?
A. ₦5,000 billion
B. ₦5,000 billion
C. ₦5,000 billion
D. ₦5,000 billion

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