Have you got your answer? Let’s compare with mine.
There are only rich or poor people on that island. An aborigine girl wanted just a rich Swindlecant. If you were a rich Swindlecant, how would you convince her saying only one sentence? And what if she wanted a rich Honestant (and if you were one).
Okay, there are 2 if-conditions here:
You’re a rich Swindlecant
You’re a rich Honestant
And you’ve got to convice her who you were.
Here, I want to make it easy, so I combine those if-conditions, then it will be:
Whether you’re an Honestant or a Swindlecant, you’re rich.
If we want to make a sentence telling that fact, we can use “Only if…, then…”. We can fill the first blank (after “only if”) by Honestant or Swindlecant. But for the second blank (after “then”), we fill it by fact (for this case is “rich”). So, a sentence you can use to convince her to choose you is “Only if I’m an Honestant, then I’m rich”.
If you’re not sure with that answer, let’s check!
The sentence is:
“Only if I’m an Honestant, then I’m rich.”
In other words:
“Only if I’m a Swindlecant, then I’m poor.”
See? Whether you’re an Honestant or a Swindlecant, you’re rich. And you’re the one she wanted.
So, a sentence you can use to convince her to choose you is “Only if I’m an Honestant, then I’m rich”.
P.S.: This brain teaser I copied from Brain Teasers (http://brainden.com/logic-problems.htm). Just on click on that link, then you’ll get more brain teasers to tease your brain or even just to ease your boring day. When you get stuck, you can visit brain teasers forum to get extra “clues” from them whom have tried to solve it (but for me, it’s better to do it by myself as I did in solving this quiz).