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The average salary per head of all worke...

The average salary per head of all workers of an institution isर 60. The average salary per head of 12 officers is र 400. The average salary per head of the rest is र 56. Then, the total number of workers in the institution is

A

1062

B

1060

C

1030

D

1032

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CHAMPION PUBLICATION-2012 TIER-II PAPER(22)-EXERCISE
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