There were a total of 100 questions in a school Maths test. 6 marks were awarded for each correct answer and 4 marks were deducted for each incorrect answer or incomplete answer. Gillian could not complete all the questions in time and left the last 7 questions blank. She scored 360 marks. How many more correct answers than wrong or incomplete answers did she answer?
Correct answers
|
Marks awarded
(x6) |
Wrong or
incomplete answers |
Marks deducted
(x4) |
Difference
|
| 93 |
558 |
7 |
28 |
530 |
| 92 |
552 |
8 |
32 |
520 |
Number of questions completed
= 100 - 7
= 93
Big difference
= 530 - 360
= 170
Small Difference
= 530 - 520
= 10
Number of wrong answers
= 170 ÷ 10
= 17
Number of wrong and incomplete answers
= 17 + 7
= 24
Number of correct answers
= 100 - 24
= 76
Number of more correct answers than wrong or incomplete answers
= 76 - 24
= 52
Answer(s): 52
