PSLE The table shows the number of students with the following scores. A higher score means a better performance. Prizes were given to the top 14 students. Billy won a prize. What was the lowest he could have scored?
Score |
5 |
8 |
9 |
10 |
12 |
15 |
18 |
20 |
Students |
3 |
8 |
13 |
14 |
9 |
7 |
4 |
3 |
Score |
5 |
8 |
9 |
10 |
12 |
15 |
18 |
20 |
|
|
|
|
|
|
Winners |
Students |
3 |
8 |
13 |
14 |
9 |
7 |
4 |
3 |
If the winning score is 20, number of winners = 3
If the winning score is 18, number of winners = 3 + 4 = 7
If the winning score is 15, number of winners = 3 + 4 + 7 = 14
Since there are 14 winners, the lowest score that Billy could have scored = 15
Answer(s): 15