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 6 pupils. John won a prize. What was the highest he could have scored?
Score |
16 |
17 |
20 |
21 |
24 |
27 |
30 |
Pupils |
1 |
2 |
3 |
10 |
6 |
4 |
2 |
Score |
16 |
17 |
20 |
21 |
24 |
27 |
30 |
|
Winners |
|
|
|
|
Pupils |
1 |
2 |
3 |
10 |
6 |
4 |
2 |
If the winning score is 16, number of winners = 1
If the winning score is 17, number of winners = 1 + 2 = 3
If the winning score is 20, number of winners = 1 + 2 + 3 = 6
Since there are 6 winners, the highest score that John could have scored = 20
Answer(s): 20