Question

in a factory the total number of workers are 25 out of them the average monthly salary of 15 workers is 8500 whereas The Other 10 have an average salary of 9800 find the monthly average salary of all the 25 workers​

Answer 1

Answer:

The average salary of all 25 workers = 9020

Step-by-step explanation:

We know that:

Average = Sum of all observations / No. of observations

=> Sum of all observations = Average * No. of observations

Average monthly salary of 15 workers = 8500

=> Sum of monthly salary of 15 workers = 8500*15 = 127500 ...(i)

Average monthly salary of 10 workers = 9800

=> Sum of monthly salary of 10 workers = 9800*10 = 98000 ...(ii)

Thus, from (i) and (ii),

Sum of monthly salary of all 25 workers = 1275000 + 98000 = 225500

=> Average monthly salary of all 25 workers = 225500/25 = 9020

Average monthly salary of all 25 workers = 9020