I agree that using "and" has obfuscated the problem in the first place. In fact, it's made the problem statement a contradiction. What I meant to say and did not (because I thought it was an underlying assumption of the subthread) is that had the problem maker used the word "OR" in place of "AND" the second sentence would have clarified whether the (putative) OR was intended to be inclusive or exclusive.

As it stands, the second sentence just restates the first sentence.

Let me be clear. I don't think the person is necessarily an idiot and I don't want to hold him or her up for ridicule. My daughter has lost nothing so far, except a little time. My only concern is that this get fixed and that the kids, my daughter and all the others, get taught the correct stuff in time for the real test.

k