Question

The type of part being manufactured today should be 1.27 inches wide, with a tolerance of 0.04 inches. If a part does not meet the size requirement, it must be rejected. You have 4 parts to inspect. They have the following widths. How many must be rejected?

1.275 inches, 1.300 inches, 1.266 inches, 1.255 inches

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

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option: A is correct.

None of the parts will get rejected.

Step-by-step explanation:

The type of part being manufactured today should be 1.27 inches wide, with a tolerance of 0.04 inches.

i.e. the range upto which the manufactured part won't be rejected are:

lower value:

1.27-0.04=1.23 and 1.27+0.04=1.31

So, any part whose width is between:

1.23 inches - 1.31 inches won't get rejected.

1) 1.275 inches.

as 1.275 inches lies between 1.23-1.31 inches.

Hence it won't get rejected.

2) 1.300 inches.

As it also lies between 1.23-1.31 inches.

Hence it won't get rejected.

3) 1.266 inches.

As it also lies between 1.23-1.31 inches.

Hence it won't get rejected.

4) 1.255 inches

As it also lies between 1.23-1.31 inches.

Hence it won't get rejected.

This means that none of the part will get rejected.