The table shows the number of pupils who wear hats in three Primary 6 classes in a school.
- How many pupils in the three classes wear hats?
- The total number of pupils who wear hats is the same as the total number of pupils in Class 6B. How many pupils in Class 6A do not wear hats?
(a)
Total number of pupils wearing hats
= 17 + 30 + 17
= 64
(b)
Total number of pupils in Class 6B
= 5 + 30
= 35
Number of pupils wearing hats in Class 6A
= 35 - (5 + 15)
= 35 - 20
= 15
Answer(s): (a) 64; (b) 15