Brain Teasers
Three Statements II
Which of these three statements are true?
1. Lisa is faster than Jane, and Nora is slower than Lisa. It is impossible to tell whether Nora is faster than Jane based on these facts alone.
2. Jack owes $64 to John. Jack has only $28 but Bill gives him another $28. Therefore Jack can repay John in full.
3. A rancher is building an open-ended fence by stringing wire between posts 20 feet apart. If the fence is 100 feet long the rancher should use 5 posts.
1. Lisa is faster than Jane, and Nora is slower than Lisa. It is impossible to tell whether Nora is faster than Jane based on these facts alone.
2. Jack owes $64 to John. Jack has only $28 but Bill gives him another $28. Therefore Jack can repay John in full.
3. A rancher is building an open-ended fence by stringing wire between posts 20 feet apart. If the fence is 100 feet long the rancher should use 5 posts.
Answer
Statement 1 is true, and statements 2 and 3 are false.In statement 1, we only know that Lisa is the fastest of the three, and we know nothing else.
In statement 2, 28+28=56<64.
In statement 3, since the fence is open-ended, you need 6 posts.
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Comments
how is that supposed to be as difficult as it is rated? that was so obvious and easy... anyone who did not get that right away should get their head checked.
you didnt even have to read the other 2 since number 1 was clearly true. Also 2. is OBVIOUSLY not true and 3. is clearly not true also
you didnt even have to read the other 2 since number 1 was clearly true. Also 2. is OBVIOUSLY not true and 3. is clearly not true also
I agree with mercenary, I don't see why this was accepted since this is NOT a "brain teaser." Shame on you editors.
i agree with the two of you . this was very simple . i had to go back and check to see that i was reading the instructions correctly because i thought it certainly be that simple .
I thought it was easy but fun at the same time.
yes, it was easy, but i was smart and read all three before pressing show answer to make sure that it wasn't a trick!!!
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