carlfans
It does. But I don't know. I felt quite slow and threw in like 5 answers at random. I average usually 38-41 in the verbal while 32-5 in quant. Did some revision and got 42 in quant and was really surprised by seeing the ratio wrong/right and the final score.
Also the score improved from 550 to 690
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I think you should be happy in that case.

There are only two possibilities here:
1. There were repeats, hence you knew the answer to some of the questions.
2. You have learned how to solve tough questions correctly.

For the number of questions incorrect, its the same logic. More difficult question is, the better marks are.
All the best