Mean/Average question help!!!!
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Mean/Average question help!!!!

[From: ] [author: ] [Date: 13-09-28] [Hit: ]
Thanks in advance!!The average weekly salary of 22 workers in a factory is $1640. If the salary of the manager is also included, the average becomes $1820. What is the managers salary-Work backwards.......
I'm taking statistics and I just can't seem to figure out this problem. I know it's probably really easy but I just can't seem to figure it out. It would help so much if you can show me how you got the answer. Thanks in advance!!

The average weekly salary of 22 workers in a factory is $1640. If the salary of the manager is also included, the average becomes $1820. What is the managers salary

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Work backwards.

If the avg of 22 people is $1640, then their total salaries are $36,080 (22*1640).

With the manager included, the total salaries of 23 people is $41,860. Subtract the first amount (without the manager's salary) from the second amount (the amount including the manager's salary)

$41,860-$36,080 = $5,780.

The manager's salary is $5,780.

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