The table shows the number of pupils who wear caps in three Primary 3 classes in a school.
- How many pupils in the three classes wear caps?
- The total number of pupils who wear caps is the same as the total number of pupils in Class 3B. How many pupils in Class 3A do not wear caps?
(a)
Total number of pupils wearing caps
= 15 + 20 + 12
= 47
(b)
Total number of pupils in Class 3B
= 8 + 20
= 28
Number of pupils wearing caps in Class 3A
= 28 - (8 + 10)
= 28 - 18
= 10
Answer(s): (a) 47; (b) 10