Line graph shows number of departments and average number of employees in all the departments in five different companies (P, Q, R, S and T). Read the following line graph carefully and answer the questions given below.

Find the ratio of total number of employees in all the departments of company T to that of company Q.

The correct answer is 25 : 24.

Step 1: Understand the given line graph data.
The line graph shows two parameters for companies P, Q, R, S, and T:
1. Blue Line: Represents the Number of departments.
2. Orange Line: Represents the Average number of employees in all departments.

Step 2: Formula for Total Employees in a Company
The total number of employees in all departments of a company is given by:

$\text{Total Employees}=\text{(Number of departments)}\times \text{(Average number of employees per department)}$

Step 3: Extract the values for Company T and Company Q from the image.
From the line graph for Company T:
• Number of departments (Blue line) = 25
• Average number of employees in all departments (Orange line) = 50

$\text{Total employees in Company T}=25\times 50=1250$

From the line graph for Company Q:
• Number of departments (Blue line) = 20
• Average number of employees in all departments (Orange line) = 60

$\text{Total employees in Company Q}=20\times 60=1200$

Step 4: Find the required ratio.
We need to find the ratio of total number of employees in company T to that of company Q:

$\text{Ratio}=\frac{\text{Total employees in T}}{\text{Total employees in Q}}=\frac{1250}{1200}$

Simplifying the fraction by dividing both numerator and denominator by 50:

$\text{Ratio}=\frac{25}{24}$

Thus, the required ratio is 25 : 24.