PSLE The table shows the number of pupils with the following scores. A lower score means a better performance. Prizes were given to the top 7 pupils. Andy won a prize. What was the highest he could have scored?
Score |
9 |
10 |
12 |
14 |
16 |
17 |
20 |
Pupils |
1 |
2 |
4 |
11 |
7 |
3 |
2 |
Score |
9 |
10 |
12 |
14 |
16 |
17 |
20 |
|
Winners |
|
|
|
|
Pupils |
1 |
2 |
4 |
11 |
7 |
3 |
2 |
If the winning score is 9, number of winners = 1
If the winning score is 10, number of winners = 1 + 2 = 3
If the winning score is 12, number of winners = 1 + 2 + 4 = 7
Since there are 7 winners, the highest score that Andy could have scored = 12
Answer(s): 12