I've been doing a lot of practise questions from the books, and I've been running across the occasional wrong answer (about 10 so far). One example is a SI question;
8 Skiers are racing down a hill, and each time a skier goes down they use a different pair of skis. What is the maximum possible number of skis used during the day?
1) A skiier never shares his or her skiis with another skiier (aka the skis are independent)
2) They each made 12 runs down the hill.
My answer was, and still is, B) - 8x12=96 skis total, each using a different pair of skis. The skis don't have to be independnet as the questions asks for the maximum possible number - this is still 96. It could be any number under that, but the wording is "the maximum possible".
The books answer was C) - They can't share any in order to derive at a concrete number 96, but the wording, again is, 'the maximum possible'... C) yields a concrete answer, which is different from the question.
The book was McGraw-Hill I think.
I'm just curious, would a mistake like this ever show up on the GMAT? Or am I reading too carefully?