Solving IT Job Vacancies Calculation

This question asks us to calculate the total number of job vacancies in Chennai in the year 2009 and in Mumbai in the year 2019, based on the provided table data.

The table shows the percentage distribution of IT job vacancies across different Indian cities for the years 2009 and 2019. We are also given the total number of vacancies for each year.

Total vacancies in 2009 = 5.4 lakhs

Total vacancies in 2019 = 8.6 lakhs

Step 1: Calculate Vacancies in Chennai in 2009

From the table, the percentage of job vacancies in Chennai in 2009 is 8%.

The total number of vacancies in 2009 was 5.4 lakhs.

Number of vacancies in Chennai in 2009 = Percentage in Chennai in 2009 $\times$ Total vacancies in 2009

Number of vacancies in Chennai in 2009 $= 8\% \text{ of } 5.4 \text{ lakhs}$

Calculation:

$\text{Vacancies in Chennai (2009)} = \frac{8}{100} \times 5.4 \text{ lakhs}$

$\text{Vacancies in Chennai (2009)} = 0.08 \times 5.4 \text{ lakhs}$

$\text{Vacancies in Chennai (2009)} = 0.432 \text{ lakhs}$

Step 2: Calculate Vacancies in Mumbai in 2019

From the table, the percentage of job vacancies in Mumbai in 2019 is 18%.

The total number of vacancies in 2019 was 8.6 lakhs.

Number of vacancies in Mumbai in 2019 = Percentage in Mumbai in 2019 $\times$ Total vacancies in 2019

Number of vacancies in Mumbai in 2019 $= 18\% \text{ of } 8.6 \text{ lakhs}$

Calculation:

$\text{Vacancies in Mumbai (2019)} = \frac{18}{100} \times 8.6 \text{ lakhs}$

$\text{Vacancies in Mumbai (2019)} = 0.18 \times 8.6 \text{ lakhs}$

$\text{Vacancies in Mumbai (2019)} = 1.548 \text{ lakhs}$

Step 3: Calculate Total Vacancies

The question asks for the total number of vacancies available in the city of Chennai in 2009 and in that of Mumbai in the year 2019.

Total vacancies = Vacancies in Chennai (2009) + Vacancies in Mumbai (2019)

Total vacancies $= 0.432 \text{ lakhs} + 1.548 \text{ lakhs}$

Total vacancies $= 1.980 \text{ lakhs}$

So, the total number of vacancies in Chennai in 2009 and Mumbai in 2019 is 1.98 lakhs.

Revision Table: IT Job Vacancies Analysis

Let's summarize the key data and calculations:

Total vacancies = Vacancies in Chennai (2009) + Vacancies in Mumbai (2019) = $0.432 + 1.548 = 1.98$ lakhs.

Additional Information: Understanding Percentage Distribution

Percentage distribution tables like this show how a total quantity is divided among different categories. Each category's share is given as a percentage of the total. To find the actual value for a category, you multiply the total quantity by the category's percentage (expressed as a decimal or fraction).

• To convert a percentage to a decimal, divide by 100. For example, 8% is $8/100 = 0.08$.
• The sum of percentages for all categories in a distribution should ideally be 100%. In this table, checking the sum for 2009 ($15+10+12+10+8+21+24 = 100$) and 2019 ($22+8+6+18+10+20+16 = 100$) confirms this.
• This type of data interpretation question is common in exams and requires careful reading of the table and performing basic percentage calculations. It's important to use the correct total value for the corresponding year when calculating the number of vacancies for a specific city and year.