The bar chart above shows the distribution of marks in a class test. If the pass mark is 5, what percentage of students failed the test?
Attached Figure / Diagram
A
10%
B
20%
C
50%
D
60%
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
Number that score less than 5: 5 + 6 + 4 + 3 + 2 = 20
Total number of students: 5 + 6 + 4 + 3 + 2 + 4 + 6 + 5 + 1 + 3 + 1 = 40.
%age of students that failed: \(\frac{20}{40} \times 100% = 50%\)
Source: Myschool Past Questions Archive (Record #33167)