Negation of a compound statement in words (and, or, if-then)

1. A.
   7 is not greater than 4 and 6 is not less than 7
2. B.
   7 is not greater than 4 or 6 is not less than 7
3. C.
   7 is greater than 4 and 6 is less than 7
4. D.
   None of the above

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1. A.
   The triangle is not an equilateral or not an isosceles triangle or it is not an isosceles or it is not right angled
2. B.
   The triangle is not an equilateral triangle or not isosceles triangle and it is isosceles or it is not right angled
3. C.
   If the triangle is an equilateral triangle or an isosceles triangle then it is an isosceles triangle or not right angled
4. D.
   If the triangle is an equilateral triangle or an isosceles triangle then it is not isosceles triangle and it is not right angled

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1. A.
   An integer is not greater than 4 but less than 5 and it is a multiple of 3.
2. B.
   If an integer is not greater than 4 and less than 5 then it is not a multiple of 3.
3. C.
   An integer is greater than 4 and less than 5 but it is not a multiple of 3.
4. D.
   An integer is not greater than 4 and not less than 5 but it is not a multiple of 3.

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1. A.
   She works and she will earn money
2. B.
   She works and she will not earn money
3. C.
   She will earn money and she works.
4. D.
   She will earn money and she does not work.

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