The table shows the number of Primary 6 students in Billy School who participated in a Mathematics class.
- How many Primary 6 students did not participate in the training?
- What is the enrolment of Primary 6 students in Billy School?
(a)
Number of students who did not participate in each class:
Class 6A → 32 - 27 = 5
Class 6B → 28 - 21 = 7
Class 6C → 32 - 28 = 4
Class 6D → 34 - 30 = 4
Class 6E → 30 - 23 = 7
Total number of students who did not participate
= 5 + 7 + 4 + 4 + 7
= 27
(b)
Total enrolment
= 32 + 28 + 32 + 34 + 30
= 156
Answer(s): (a) 27; (b) 156