Q. The mean monthly salary paid to 75 workers in a factory is Rs. 5680. The mean salary of 25 of them is Rs. 5400 and that of 30 others is Rs. 5700. The mean salary of the remaining workers is

• A. Rs. 5000
• B. Rs. 6000
• C. Rs. 7000
• D. Rs. 8000

Correct Answer: B