# Word Problem Involving a Percentage

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12 A production center is available for 8 hours a day in a factory. It is comprised of several rotary parts and the worker operating it, is required to lubricate these rotary parts regularly each day. It takes 2 hours to remove these parts from the production center, lubricate them and assemble them back. The production center is not available for production during these times. The availability of the center is

A. 25%

B. 40%

C. 50%

D. 75%

E. Cannot be computed with the given information.

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#### Solution Preview

The correct answer is D. The production center is available for ...

#### Solution Summary

We solve a word problem in arithmetic involving a percentage calculation.

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