The following Pie-Charts show the percentage of different categories (A, B, C, D, E and F) of employees in a company in the year 2019 and 2020. The total number of employees was 4000 in 2019 and 5000 in 2020.

There are two categories of employees in 2019 whose total strength remained the same in 2020. What are these two categories ?
C and D
Given
Total number of employees in 2019 = 4000
Total number of employees in 2020 = 5000
Calculation
For category A,
Total number employee of category A in 2019 = 20 × 4000/100 = 800
Total number employee of category A in 2020 = 22 × 5000/100 = 1100
For category B,
Total number employee of category B in 2019 = 6 × 4000/100 = 240
Total number employee of category B in 2020 = 10 × 5000/100 = 500
For category C,
Total number employee of category C in 2019 = 10 × 4000/100 = 400
Total number employee of category C in 2020 = 11 × 5000/100 = 550
For category D,
Total number employee of category D in 2019 = 15 × 4000/100 = 600
Total number employee of category D in 2020 = 9 × 5000/100 = 450
For category E,
Total number employee of category E in 2019 = 27 × 4000/100 = 1080
Total number employee of category E in 2020 = 27 × 5000/100 = 1350
For category F,
Total number employee of category F in 2019 = 22 × 4000/100 = 880
Total number employee of category F in 2020 = 21 × 5000/100 = 1050
Number of employees in C and D in 2019 = (400 + 600) = 1000
Number of employees in C and D in 2020 = (550 + 450) =1000
So clearly see that total of C and D in 2019 and 2020 remain same.
∴ The correct answer is C and D
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Sector | Percentage |
Agriculture and Rural development | 12.9 |
Irrigation | 12.5 |
Energy | 27.2 |
Industry and Minerals | 15.4 |
Transport and communication | 15.9 |
Social services | 16.1 |
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