There are two categories of employees whose strength increased by same percentage in 2020. What are the two categories?

Consider the following for the next four (04) items that follow:<br><br>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.

  1. A. E and F
  2. B. C and E
  3. C. A and E
  4. D. A and C

Correct Answer: D. A and C

Explanation

Categories A and C both maintain the same relative percentage shares in the pie charts for both years. Thus, their total absolute strengths both increased by the same baseline proportion, which is \frac{5000-4000}{4000} \times 100\% = 25\%.

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