PSLE
Students participating in a contest must obtain at least a certain score in the first round to qualify for the next round. There were 180 students in the first round and the table shows the number of students for each score. 60% of the students did not qualify for the next round. From the table, what was the lowest score of a student who qualified for the next round?

Score	Number of students
0	18
2	21
4	30
6	39
8	40
10 or more	32

Score	Number of students	Status
0	18	60% of students did not qualify
2	21
4	30
6	39
8	40	40% of students qualified
10 or more	32

Percent of students who qualified for the next round
= 100% - 60%
= 40%

Number of students who qualified for the next round
= 40% of students
= ⁴⁰₁₀₀ x 180 
= 72

Number of students who score 10 or more = 32
Number of students who score 8 or more = 32 + 40 = 72

Lowest score of a student who qualified for the next round = 8

Answer(s): 8