There were a total of 62 questions in a school Maths test. 8 marks were awarded for each correct answer and 6 marks were deducted for each incorrect answer or incomplete answer. Xylia could not complete all the questions in time and left the last 6 questions blank. She scored 160 marks. How many less wrong or incomplete answers than correct answers did she answer?
Correct answers
|
Marks awarded (x8) |
Wrong or incomplete answers |
Marks deducted (x6) |
Difference
|
56 |
448 |
6 |
36 |
412 |
55 |
440 |
7 |
42 |
398 |
Number of questions completed
= 62 - 6
= 56
Big difference
= 412 - 160
= 252
Small Difference
= 412 - 398
= 14
Number of wrong answers
= 252 ÷ 14
= 18
Number of wrong and incomplete answers
= 18 + 6
= 24
Number of correct answers
= 62 - 24
= 38
Number of less wrong or incomplete answers than correct answers
= 38 - 24
= 14
Answer(s): 14