Thanks for pointing out the error. This problem is repeated in many of the other editions of the GMAT Quant Review and I link the new problem numbers to the earlier version, that is why you will see a different title than the link you may be coming from.

That is a good point. Because there is no dimension given in this question, one could argue that we can scale the figure to any size to obtain any width for the wooden strip. This is a bizarre question, I am not sure what is exactly being tested here. May be the test writers expect students to be thrown off by this question.

georg vilshofen says

Hello, not to quibble, just that the final fraction should be 64/3, not 68/3. Also the title should read “2019.”

GMAT Quantum says

Thanks for pointing out the error. This problem is repeated in many of the other editions of the GMAT Quant Review and I link the new problem numbers to the earlier version, that is why you will see a different title than the link you may be coming from.

Sam says

I think the trick here to realise that any length can be possible, and not do the extensive calculations.

GMAT Quantum says

That is a good point. Because there is no dimension given in this question, one could argue that we can scale the figure to any size to obtain any width for the wooden strip. This is a bizarre question, I am not sure what is exactly being tested here. May be the test writers expect students to be thrown off by this question.