Question Details

Bar graph given below shows the total number of graduate and post graduate employees in five different companies. Table shows the difference between graduate and posts graduate employees.

CompaniesGraduate – Post Graduate employees
A4
B2
C36
D90
E96

Note – Total Employees = Graduate + Post Graduate Employees
Graduate employees are more than Post Graduate Employees

In company X, the total employees are average number of employees in A, C and E. The ratio of graduate employees in A and X is 1:1. Find the ratio of post graduate employees in X and graduate employees in E?

Options

A

30:31

B

57:31

C

22:57

D

52:75

E

75:52

Show Answer

Correct Answer :

Option D

52:75

52:75

Solution :

Correct Answer: 52:75

To solve this problem, we need to analyze the total number of employees from the provided bar graph along with the difference between graduate and post graduate employees from the given table.

Image

From the problem statement, we have the following relations for any company:
1. Total Employees=Graduate+Post Graduate
2. Difference=Graduate-Post Graduate

Adding these two equations gives:
Graduate Employees=Total Employees+Difference2

Subtracting the second equation from the first gives:
Post Graduate Employees=Total Employees-Difference2

Step 1: Extract data for Companies A, C, and E

From the bar graph and table:
- Company A: Total employees = 220, Difference = 4
- Company C: Total employees = 224, Difference = 36
- Company E: Total employees = 204, Difference = 96

Step 2: Calculate Graduate employees in Company A

Graduate employees in A=220+42=2242=112

Step 3: Calculate Total employees in Company X

Company X's total employees is the average number of employees in Companies A, C, and E:

Total employees in X=220+224+2043=6483=216

Step 4: Calculate Graduate and Post Graduate employees in Company X

Since the ratio of graduate employees in A and X is 1:1:

Graduate employees in X=Graduate employees in A=112

Now, find the post graduate employees in X:

Post graduate employees in X=Total employees in X-Graduate employees in X

Post graduate employees in X=216-112=104

Step 5: Calculate Graduate employees in Company E

Graduate employees in E=204+962=3002=150

Step 6: Find the required ratio

Ratio of post graduate employees in X to graduate employees in E:

Ratio=104150=5275

Therefore, the required ratio is 52:75.

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