How many spelling errors are in the following sentence?
People who work too produce goods and services are called human resources.

The correct answer to this question is one because there is one spelling error in this sentence. The word that is spelled incorrectly is the word too. The correct word that should be used is to. Too, two, and to all sound alike but are all used differently. Too can mean an excess of something (too much).

Two is a number between one and three. Lastly, it is used to express motion for a noun, like going to the mall. Other than that, every other word in the sentence is spelled correctly. This type of question would be likely to ask a student on a test for the English subject.