We are given the following information:
- The total number of executives across all companies is 10,000.
- The percentage distribution of employees across the companies is:
- \( C1: 15% \)
- \( C2: 5% \)
- \( C3: 8% \)
- \( C4: 32% \)
- \( C5: 20% \)
- \( C6: 20% \)
Step 1: Calculate the number of executives in each company
The number of executives in each company is:
- Number of executives in \( C1 = 15% \times 10,000 = 1500 \)
- Number of executives in \( C2 = 5% \times 10,000 = 500 \)
- Number of executives in \( C3 = 8% \times 10,000 = 800 \)
- Number of executives in \( C4 = 32% \times 10,000 = 3200 \)
- Number of executives in \( C5 = 20% \times 10,000 = 2000 \)
- Number of executives in \( C6 = 20% \times 10,000 = 2000 \)
Step 2: Calculate the number of management degree holders in \( C2 \) and \( C5 \)
- For \( C2 \), the ratio of executives with a management degree is \( 1:4 \), meaning 1 out of every 5 executives has a management degree.
\[
\text{Management degree holders in } C2 = \frac{1}{5} \times 500 = 100
\]
- For \( C5 \), the ratio of executives with a management degree is \( 9:1 \), meaning 9 out of every 10 executives have a management degree.
\[
\text{Management degree holders in } C5 = \frac{9}{10} \times 2000 = 1800
\]
Step 3: Total management degree holders in \( C2 \) and \( C5 \)
The total number of management degree holders in \( C2 \) and \( C5 \) together is:
\[
100 + 1800 = 1900
\]
Thus, the total number of management degree holders in companies \( C2 \) and \( C5 \) is 1900, corresponding to Option (C).
Final Answer: (C) 1900