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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
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B
Rs. 1954
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C
Rs. 2175
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D
Rs. 2569
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Solution

The correct option is D Rs. 1465
Mean salary of 12 employees = Rs. 1450
Sum of salary of 12 employees =12×1450= Rs. 17400
A new employee joins the firm and he gets, Rs 1645
Hence, new sum of salary =17400+1645=19045
New mean =1904513=1465
The new mean salary of all the employees is Rs. 1465

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