In a class of 40 students, 12 speak both English and German. 22 speak German. If the students of the class that speak at least one of the two subjects, then how many students speak only English and not German?

Answer 1

You may want to rephrase the problem.

"22 speak German, of which 12 speak both languages", because it doesn't say that the 22 German speakers speak only German. So #40-22=18# students speak only English.
If it were "only German" the answer would be: #40-12-22=6#
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Answer 2

There are 10 students who speak only English and not German.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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