The table shows the number of pupils who wear spectacles in three Primary 1 classes in a school.
- How many pupils in the three classes wear spectacles?
- The total number of pupils who wear spectacles is the same as the total number of pupils in Class 1B. How many pupils in Class 1A do not wear spectacles?
(a)
Total number of pupils wearing spectacles
= 16 + 30 + 18
= 64
(b)
Total number of pupils in Class 1B
= 3 + 30
= 33
Number of pupils wearing spectacles in Class 1A
= 33 - (3 + 16)
= 33 - 19
= 14
Answer(s): (a) 64; (b) 14