There were a total of 86 questions in a school English test. 7 marks were awarded for each correct answer and 4 marks were deducted for each incorrect answer or incomplete answer. Ivory could not complete all the questions in time and left the last 5 questions blank. She scored 316 marks. How many less wrong or incomplete answers than correct answers did she answer?
Correct answers
|
Marks awarded (x7) |
Wrong or incomplete answers |
Marks deducted (x4) |
Difference
|
81 |
567 |
5 |
20 |
547 |
80 |
560 |
6 |
24 |
536 |
Number of questions completed
= 86 - 5
= 81
Big difference
= 547 - 316
= 231
Small Difference
= 547 - 536
= 11
Number of wrong answers
= 231 ÷ 11
= 21
Number of wrong and incomplete answers
= 21 + 5
= 26
Number of correct answers
= 86 - 26
= 60
Number of less wrong or incomplete answers than correct answers
= 60 - 26
= 34
Answer(s): 34