There were a total of 56 questions in a school English test. 10 marks were awarded for each correct answer and 6 marks were deducted for each incorrect answer or incomplete answer. Risa could not complete all the questions in time and left the last 5 questions blank. She scored 176 marks. How many less wrong or incomplete answers than correct answers did she answer?
Correct answers
|
Marks awarded
(x10) |
Wrong or
incomplete answers |
Marks deducted
(x6) |
Difference
|
| 51 |
510 |
5 |
30 |
480 |
| 50 |
500 |
6 |
36 |
464 |
Number of questions completed
= 56 - 5
= 51
Big difference
= 480 - 176
= 304
Small Difference
= 480 - 464
= 16
Number of wrong answers
= 304 ÷ 16
= 19
Number of wrong and incomplete answers
= 19 + 5
= 24
Number of correct answers
= 56 - 24
= 32
Number of less wrong or incomplete answers than correct answers
= 32 - 24
= 8
Answer(s): 8
