The mean monthly salary paid to 75 workers in a factory…

Are you looking for correct answer of The mean monthly salary paid to 75 workers in a factory…? Here we have shared detailed answer with explanations.

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-

  1. A. Rs. 5000
  2. B. Rs. 6000
  3. C. Rs. 7000
  4. D. Rs. 8000

Answer: Option B

Here is complete explanation of The mean monthly salary paid to 75 workers in a factory….

Solution(By ExamCraze Team)

Required average
$$ = {text{Rs}}{text{.}}$$ $$left[ {frac{{left( {5680 times 75} right) - left{ {left( {5400 times 25} right) + left( {5700 times 30} right)} right}}}{{75 - left( {25 + 30} right)}}} right]$$
$$ = {text{Rs}}{text{. }}left[ {frac{{426000 - left( {135000 + 171000} right)}}{{20}}} right]$$
$$eqalign{ & = {text{Rs}}{text{. }}left( {frac{{120000}}{{20}}} right) cr & = {text{ Rs}}{text{. 6000}} cr} $$

Leave a Comment