The average monthly salary of 20 workers is an office is Rs. 7650. If the manager 's salary is added, the average salary becomes Rs. 8200 per month. What is the manager 's salary per month

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Solution

Average monthly salary of 20 workers = Rs 7650
Therefore, total salary of 20 workers = Rs 7650 Ã— 20 = Rs 153000
New average salary after the inclusion of the manager's salary = Rs 8200
Number of persons = 20 + 1 = 21
âˆ´Total salary of 20 workers and the manager = Rs 8200 Ã— 21 = Rs 172200
âˆ´Salary of the manager = Rs 172200 - Rs 153000 = Rs 19200

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