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The average salary per head on all the workers and officers in a workshop is Rs 95. The average salary in 15 officers is Rs 525 and the average salary of the workers is Rs 85. Find the number of workers in the workshop.

A.	600	B.	645
C.	690	D.	654

Answer and Explanation

Answer:645

Explanation:
Let the number of workers be x
85x + 525(15) = 95(x + 15) =>x = 645

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