Let be the statement ' is an integer' and be the statement ' is an integer'. Which of the following is correct? (Here is a real number.)
Answer and explanation
Correct answer: C. is a sufficient but not a necessary condition for
- Step 1: If is an integer then is an integer, so .
- Step 2: But has , an integer, while is not an integer, so .
Answer
is a sufficient but not a necessary condition for .
Why not the others: is sufficient but the value shows it is not necessary.
Practise more Necessary and sufficient conditions.
Free questions with an explanation for every one, and full timed TMUA mock tests.
More Necessary and sufficient conditions questions
- Let be the statement '' and be the statement ''. Which of the following is correct? (Here is a real number.)
- Let be the statement ' is divisible by 3' and be the statement ' is divisible by 6'. Which of the following is correct? (Here…
- Let be the statement '' and be the statement ''. Which of the following is correct? (Here is a real number.)
- Let be the statement '' and be the statement ' or '. Which of the following is correct? (Here and are…
- Let be the statement '' and be the statement ''. Which of the following is correct? (Here is a real…
- Let be the statement ' and ' and be the statement ' and '. Which of the following is correct? (Here…