That's what I thought too. If, say, everyone got Q1, 2, 3, 4, and 5 right, and got 6, 7, 8, 9, and 10 wrong, (or the other way around) then it would be Average.
If everyone got all of the questions right, it would be Very Simple And if they were all wrong, Impossible. Just guessing though.
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When I was born, I was so surprised I couldn't talk for a year and a half.