In a circuit board factory, all circuit boards that pass a verification process are certified. Every board that fails the verification process is indeed faulty, but 1/8 of those that pass are also faulty.
Approximately how many faulty circuit boards exist in a group of 800 circuit boards where 32 fail inspection?	Select the correct option.
A) 72	B) 192	C) 200	D) 128	E) 264
Total of 800 boards. All that fail verification are indeed faulty. So the 32 are indeed faulty. 1/8 those that pass are also faulty.   From the 800 we know 32 fail. So 768 must pass. Of these 1/8 are faulty. 768 divided by 8 gives you 96.   What one must do now is to add to the 96 which were not detected the actually detected faulty ones, namely the 32.   Total faulty: 128.   Answer: 128
<result>D</result>
In a circuit board factory, all circuit boards that pass a verification process are certified. Every board that fails the verification process is indeed faulty, but 1/8 of those that pass are also faulty.
Approximately how many faulty circuit boards exist in a group of 800 circuit boards where 32 fail inspection?