Do you believe me?

Logic Level pending

I told you, "I'm lying that I don't always lie except what I'm saying now that you won't make a mistake if you don't go with answer A."

If what I've told you is true then, which answer you should try?

B A

1 solution

Md Omur Faruque
Aug 3, 2015

I told you, "I'm $\color{#D61F06} {lying}$ $\color{teal} {that}$ I $\color{#D61F06} {don't}$ always $\color{#D61F06} {lie}$ $\color{#D61F06} {except}$ what I'm saying now $\color{teal} {that}$ you $\color{#D61F06} {won't}$ make a $\color{#D61F06} {mistake}$ if you $\color{#D61F06} {don't}$ go with answer A."

$\color{#20A900} {\text{Solution 1:}}$ Let's divide the statement in 3 parts setting $\color{teal} {that}$ as dividing point.

3rd part is same as : "You will be right if you select answer B" and tells us to select $\color{#69047E} {\text{Answer B}}$

2nd part is same as: "What I'm telling you in third part is a lie. " Combining both part we get $\color{#69047E} {\text{Answer A}}$ .

Combining it with 1st part we get our final answer as $\color{#69047E} {\boxed{\text{Answer B}}}$ .

$\color{#20A900} {\text{Solution 2:}}$ There are a total of 7 $\color{#D61F06} {\text{negative}}$ terms referring to $\color{#69047E} {\text{Answer A}}$ in the sentence, thus making it $\color{#D61F06} {\text{negative}}$ .

So, the answer will be $\color{#69047E} {\boxed{\text{Answer B}}}$ .

There are only 2 options. If you even guess it, there is a 50% chance of being right.

Funny that, it's really 50%.

MD Omur Faruque - 5 years, 10 months ago

Do you believe me?

1 solution

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