During one exam, points were awarded for questions answered as shown.
|
Points per question |
Correct |
5 |
Wrong |
- 3 |
Missed |
- 1 |
The ratio of the questions correctly to questions answered wrongly to questions that were missed out was 8 : 2 : 1. If Pamela was awarded 132 points, how many questions are there in all?
|
Correct |
Wrong |
Missed |
Number |
8 u |
2 u |
1 u |
Value |
5 |
- 3 |
- 1 |
Total value |
40 u |
6 u |
1 u |
Total score that Pamela was awarded
= 40 u - 6 u - 1 u
= 33 u
33 u = 132
1 u = 132 ÷ 33 = 4
Total number of questions
= 8 u + 2 u + 1 u
= 11 u
= 11 x 8
= 88
Answer(s): 88