If the price index increased from 100 in 2021 to 110 in 2022 to 132 in 2023, then the rate of inflation is:
- AOption (a)
0.1
- BOption (b)
0.32
- COption (c)
0.2
- DOption (d)
Cannot be determined
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Correct answer
0.2
Why this answer is correct
The correct answer is Option 3 (0.2).
Key PointsRate of Inflation Calculation
- To determine the rate of inflation, we need to analyze the change in the price index over the specified period.
- The price index increased from 100 in 2021 to 110 in 2022 and then to 132 in 2023.
- We need to calculate the inflation rate for each year first and then determine the average if required.
- The formula to calculate the inflation rate is:
Inflation Rate = (New Price Index - Old Price Index) / Old Price Index
Additional Information
- Calculation for 2022:
- The price index increased from 100 in 2021 to 110 in 2022.
- Using the formula:
Inflation Rate for 2022 = (110 - 100) / 100 = 0.10 or 10%
- Hence, the inflation rate for 2022 is 10%.
- Calculation for 2023:
- The price index increased from 110 in 2022 to 132 in 2023.
- Using the formula:
Inflation Rate for 2023 = (132 - 110) / 110 = 0.20 or 20%
- Hence, the inflation rate for 2023 is 20%.
- Explanation:
- The correct answer is determined based on the calculation of the inflation rate between 2022 and 2023.
- The rate of inflation between 2022 and 2023 is 0.20 or 20%.
- Option 3 correctly represents the 20% inflation rate for the given period.
Additional Information
- Inflation is an economic term that describes the rise in prices for goods and services over time.
- Price Index is a normalized average of price relatives for a given class of goods or services in a given region, during a given interval of time.
- The commonly used price indices include the Consumer Price Index (CPI) and the Producer Price Index (PPI).
- The Consumer Price Index (CPI) measures the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services.
- The Producer Price Index (PPI) measures the average change over time in the selling prices received by domestic producers for their output.
- Understanding inflation is crucial for economic policy-making, as it affects purchasing power, cost of living, and can influence interest rates and wages.