There were a total of 88 questions in a school Maths test. 9 marks were awarded for each correct answer and 5 marks were deducted for each incorrect answer or incomplete answer. Usha could not complete all the questions in time and left the last 5 questions blank. She scored 498 marks. How many more correct answers than wrong or incomplete answers did she answer?
Correct answers
|
Marks awarded
(x9) |
Wrong or
incomplete answers |
Marks deducted
(x5) |
Difference
|
| 83 |
747 |
5 |
25 |
722 |
| 82 |
738 |
6 |
30 |
708 |
Number of questions completed
= 88 - 5
= 83
Big difference
= 722 - 498
= 224
Small Difference
= 722 - 708
= 14
Number of wrong answers
= 224 ÷ 14
= 16
Number of wrong and incomplete answers
= 16 + 5
= 21
Number of correct answers
= 88 - 21
= 67
Number of more correct answers than wrong or incomplete answers
= 67 - 21
= 46
Answer(s): 46
