Question

The mean monthly salary of the $12$ employees of a firm is Rs. $1450$. If one more person joins the firm who gets Rs. $1645$ per month, what will be the mean monthly salary of $13$ employees?

• A. Rs. $1465$
• B. Rs. $1954$
• C. Rs. $2175$
• D. Rs. $2569$

Answer 1

Answer: (A)

Rs. $1465$

Mean salary of $12$ employees $=$ Rs. $1450$
Sum of salary of $12$ employees $=12\times 1450=$ Rs. $17400$
A new employee joins the firm and he gets, Rs $1645$
Hence, new sum of salary $=17400+1645=19045$
New mean $=\frac{19045}{13}=1465$
The new mean salary of all the employees is Rs. $1465$