How many pupils took the test?
Attached Figure / Diagram
A
36
B
38
C
39
D
40
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
No. of pupils = 1 + 3 + 4 + 7 + 8 + 6 + 6 + 4 + 1 = 40
Source: Myschool Past Questions Archive (Record #36211)