Demand, Supply and Price Determination

In a local agricultural market, there are $25$ identical cassava producers operating under competitive conditions. The individual supply function for each producer is expressed as $Q_i = -15 + 4P$, where $Q_i$ represents the quantity supplied by a single producer in bags and $P$ is the market price per bag in Naira ($\text{₦}$). If the total aggregate market quantity supplied is $1,325$ bags, what is the prevailing market price per bag in Naira?

The demand and supply functions for a commodity in a competitive market are given as $Q_d = 180 - 8P$ and $Q_s = -20 + 12P$, where $P$ is the price in Naira (₦), $Q_d$ is the quantity demanded, and $Q_s$ is the quantity supplied. If the government imposes a maximum price ceiling of ₦8, what is the resulting market condition?

In a competitive market for cassava flour, the weekly demand function is given by $Q_d = 320 - 15P$ and the supply function is $Q_s = -40 + 10P$, where $P$ is the price in Naira per kilogram, $Q_d$ is the quantity demanded in kilograms, and $Q_s$ is the quantity supplied in kilograms. What is the magnitude of the excess demand (shortage) in kilograms when the market price is fixed at $₦12$ per kilogram?

An individual consumer's weekly demand function for sugar is expressed as $Q_d = 120 - 4P$, where $Q_d$ represents the quantity demanded in bags and $P$ represents the price per bag in Naira ($\text{₦}$). According to the law of demand, by how many bags does the quantity demanded decrease when the price per bag increases from $\text{₦}10$ to $\text{₦}15$?

During a period of severe economic downturn, a low-income household observes that when the price of cassava flour—their primary staple food—rises, their monthly consumption of cassava flour actually increases because they can no longer afford meat or rice. Which economic concept accounts for this exception to the standard law of demand?

Match each fundamental economic concept relating to the concept and law of demand on the left with its corresponding definition on the right. Which of the following pairs correctly connects each concept with its appropriate economic definition?

An increase in the global market demand for chocolate leads to higher production targets for processing firms, which subsequently prompts cocoa farmers to hire additional farm workers. What type of demand is exhibited by farm labour in this economic scenario?

Match each economic scenario or commodity usage on the left with its corresponding classification of demand on the right.

Match each market scenario affecting a commodity with its corresponding impact on the demand curve.

Tea and coffee are substitute goods in competitive demand. If the price of coffee rises significantly while the price of tea remains unchanged, which of the following market changes will occur for tea?

Match each economic factor or market event on the left with its corresponding impact on the demand curve for the target commodity on the right.

A commercial rice miller in Kano increased monthly production from $500$ bags to $750$ bags after the market price of rice rose from $\text{N}35,000$ to $\text{N}48,000$ per bag, while technology and input prices remained unchanged. Which of the following best describes this scenario?

A poultry farmer in Ogun State increases weekly egg production from $150$ crates to $220$ crates following an increase in market price from $\text{N}2,000$ to $\text{N}2,800$ per crate, while input costs remain constant. Which of the following economic principles is directly illustrated by the farmer's behavior?

Under standard competitive economic conditions, an increase in the market price of a commodity causes an outward shift of its supply curve to the right, ceteris paribus.

Match each type of supply in Column A with its corresponding economic description in Column B.

The total supply of sugar required by industrial beverage manufacturers in Nigeria is obtained simultaneously from domestic sugarcane estates, local processing plants, and international importers. What type of supply is exemplified by these distinct sources combining to satisfy a single market demand?

In a competitive wholesale market for cement, the daily quantity demanded is given by the linear demand function $Q_d = 450 - 12P$ and the daily quantity supplied is given by $Q_s = -50 + 13P$, where $P$ is the price per bag in hundreds of Naira and $Q$ is measured in metric tons. What is the equilibrium quantity of cement traded in metric tons?

A major technological improvement significantly reduces the cost of producing fertilizer for rice farmers in Nigeria. Assuming the market price of rice remains initially unchanged, how will this technological advancement affect the market supply curve for rice?

Match each economic event affecting cassava flour processing in Nigeria on the left with its corresponding effect on the supply curve of cassava flour on the right.

In a regional market for palm oil, the weekly quantity demanded is expressed as $Q_d = 400 - 8P$ and the quantity supplied is expressed as $Q_s = -80 + 12P$, where $P$ represents the price per liter in Naira ($₦$). If the government fixes a price ceiling of $₦15$ per liter, what is the resulting market condition?