Logical Reasoning - Logical Problems - Discussion
Discussion Forum : Logical Problems - Type 4 (Q.No. 8)
Directions to Solve
The logic problems in this set present you with three true statements: Fact 1, Fact 2, and Fact 3. Then, you are given three more statements (labeled I, II, and III), and you must determine which of these, if any, is also a fact. One or two of the statements could be true; all of the statements could be true; or none of the statements could be true. Choose your answer based solely on the information given in the first three facts.
8.
Fact 1: | Mary said, "Ann and I both have cats." |
Fact 2: | Ann said, "I don't have a cat." |
Fact 3: | Mary always tells the truth, but Ann sometimes lies. |
I: | Ann has a cat. |
II: | Mary has a cat. |
III: | Ann is lying. |
Answer: Option
Explanation:
If Mary always tells the truth, then both Ann and Mary have cats (statements I and II), and Ann is lying (statement III). So all the statements are facts.
Discussion:
7 comments Page 1 of 1.
Purusottam said:
7 years ago
You are absolutely right @Vincent.
Vincent said:
9 years ago
All three are facts. If Ann has a cat 1 and 3 are true. If Ann does not have a cat three could not be a fact. Therefore, D is true. This is elementary logic.
Sharala said:
10 years ago
@Logicman.
But it has also said "Sometime and lies" sometimes doesn't indicate she is lying. So I agree with @Tash.
But it has also said "Sometime and lies" sometimes doesn't indicate she is lying. So I agree with @Tash.
LogicMan said:
10 years ago
@Tash - But it is a given that all of the first 3 statements are facts. So Ann is lying and all of the 3 other statements are facts.
Whoever said:
1 decade ago
What if Ann lied to Mary?
Then she said the truth that she has no cats.
Then she said the truth that she has no cats.
101 said:
1 decade ago
In my opinion option [A] Ann lied because Marry said that she and Ann have a cat + Marry always tells the truth.
Tash said:
1 decade ago
If Mary always tells the truth, then both Mary and Ann have cats.
But if Ann sometimes tells the truth, we are uncertain as to whether Ann has a cat or not because she could either be telling the truth or a lie.
Therefore answer is B.
But if Ann sometimes tells the truth, we are uncertain as to whether Ann has a cat or not because she could either be telling the truth or a lie.
Therefore answer is B.
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