The mean minthly salary of 10 people is Rs. 2,890. One more person whose monthly salary is Rs. 3,000 has also been taken into consideration. Find the mean monthly salary of all the 11 people.

Answer

To find the mean monthly salary of 11 people after adding one more person's salary, we can follow these steps:

### Step 1: Calculate the total salary of the initial 10 people.
Given that the mean salary of 10 people is Rs. 2,890, we can use the formula for mean:

\[ \text{Mean} = \frac{\text{Total Salary}}{\text{Number of People}} \]

Rearranging this gives us:

\[ \text{Total Salary} = \text{Mean} \times \text{Number of People} \]

Substituting the values:

\[ \text{Total Salary} = 2890 \times 10 = 28900 \]

### Step 2: Add the salary of the new person.
The salary of the new person is Rs. 3,000. We add this to the total salary of the initial 10 people:

\[ \text{New Total Salary} = 28900 + 3000 = 31900 \]

### Step 3: Calculate the new mean salary for all 11 people.
Now that we have the new total salary for 11 people, we can find the new mean:

\[ \text{New Mean} = \frac{\text{New Total Salary}}{\text{New Number of People}} = \frac{31900}{11} \]

Calculating this gives:

\[ \text{New Mean} = 2900 \]

### Final Answer:
The mean monthly salary of all 11 people is Rs. 2,900.

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