Solve this:

Solve this: The mean monthly wages of a group of 15 workers in a factory was 3351. 4 workers whose mean monthly wage was 331() left the factory and a new worker at a monthly wage of 3025 was ted. Find the mean wage of the remaining oup.

Total wages of 15 workers initially = 15 * 3351 = Rs. 50256
Total wages of those 4 workers who left the factory = 4 * 3310 = Rs. 13240
Wage of new worker who joined the factory = Rs. 3025
Total wages of the 12 remaining workers = 50256 - 13240 + 3025 = Rs. 40041
Therefore, mean wages of remaining group = 40041/12 = Rs. 3336.75