Question

The average of monthly salary of $20$ employees in a company is Rs.$7,650$. If the manager's salary is added, the average salary increase by Rs. $550$ per month. What is the manager's monthly salary?

• A. Rs. $15,200$.
• B. Rs.$17,200$.
• C. Rs. $18,200$.
• D. Rs.$19,200$.

Answer 1

The correct option is D Rs.$19,200$.

Let the salary of the manager be x
Sum of salaries of employees = $20\times 7650=153000$
Total Salaries = $153000+x$
New mean = $7650+550=8200$
Total Salaries = $21\times 8200$ = $171150$
Hence, $153000+x=172200$
$x=172200-153000$
$x=19200$
Hence, manager's salary is Rs 19,200