You missed 3 questions.
41 questions (if you got 83 percent, then that means you got 34 questions right)
If you got 16 questions correct on a test, and got 80 percent, then there are a total of 16 / (80/100) = 16/0.8 = 20 questions on the test.
55
If every question was worth the same credit, you missed 18 of them.
If you're awarded 1 mark per question, and you got 77%, you missed roughly 25% of the questions, which is 15
41 questions (if you got 83 percent, then that means you got 34 questions right)
If you got 16 questions correct on a test, and got 80 percent, then there are a total of 16 / (80/100) = 16/0.8 = 20 questions on the test.
55
It would be 80. You missed 20% of the 20 questions: you missed 4 questions.
You might not have missed any - you just got nearly half of them wrong.
If every question was worth the same credit, you missed 18 of them.
You passed. You got like 54 questions right that's over 50%
If you're awarded 1 mark per question, and you got 77%, you missed roughly 25% of the questions, which is 15
10 questions
3
My guess is that it wasn't a maths test. 32 X 0.82=26.24 so you missed 6. Your teacher gave you an extra mark as that comes to 81%.
Igor was unhappy because on his test he spelled "everything" right, but got all of the questions wrong.