Calculating Battery Sales Difference

This problem requires us to analyze the provided table showing the year-wise sales of different types of batteries. We need to find the difference in the number of 35AH batteries sold between the years 2016 and 2020. The sales figures in the table are given in thousands.

Understanding the Battery Sales Data Table

The table presents the sales data for five types of batteries (4AH, 7AH, 32AH, 35AH, and 55AH) across seven years (2015 to 2021). Each value in the table represents the sale amount in thousands for a specific battery type in a particular year.

Finding 35AH Battery Sales for Specific Years

We need to locate the sales figures for the 35AH battery type for the years 2016 and 2020.

• For the year 2016, look at the row for 2016 and the column for 35AH. The value is 84. This means 84 thousand batteries were sold.
• For the year 2020, look at the row for 2020 and the column for 35AH. The value is 45. This means 45 thousand batteries were sold.

Calculating the Difference in 35AH Battery Sales

To find the difference in the number of 35AH batteries sold between 2016 and 2020, we subtract the sales in 2020 from the sales in 2016. Remember that the numbers from the table are in thousands.

Sales of 35AH batteries in 2016 = 84 (in thousands)

Sales of 35AH batteries in 2020 = 45 (in thousands)

Difference in sales (in thousands) = Sales in 2016 - Sales in 2020

Difference in sales (in thousands) = $84 - 45 = 39$

Since the figures are in thousands, the actual difference is the calculated difference multiplied by 1000.

Actual difference = $39 \times 1000 = 39000$

Conclusion on Battery Sales Difference

The difference in the number of 35AH batteries sold in 2016 and 2020 is 39,000.

Revision Table: Battery Sales Data

Here is a summary of the key data points used for this calculation:

Additional Information: Analyzing Sales Data

Analyzing sales data from tables like this is a common task. It helps understand trends, compare performance across different years or products, and make informed business decisions.

• Trend Analysis: You can observe how the sales of a specific battery type change over the years. For 35AH batteries, sales went from 84k in 2016 to 105k in 2017, then down to 45k in 2020, and up to 100k in 2021. This shows fluctuations rather than a steady increase or decrease.
• Comparison: You can compare the sales of different battery types in the same year or compare the sales of the same battery type across different years.
• Units: Always pay attention to the units used in the table (e.g., thousands, millions, units). This is crucial for calculating actual values and differences. In this case, the unit is 'thousands', so we multiply the table value by 1000.
• Calculations: Questions often involve basic arithmetic operations like addition, subtraction, multiplication, division, percentages, or ratios based on the table data.

Understanding how to read and interpret data from tables is a fundamental skill for data analysis and many quantitative problems.