In a class, the ratio of pupils who wear watches to those who do not wear watches is 5 : 3. If 25 pupils wear watches, find the number of pupils who do not wear watches and the number of pupils in the class.
Answer:
Proportion:
Number of pupils who do not wear watches:
Number of pupils in the class:
1
Share
Answer:15
proportion: 5:3=25:15
number of pupils who didnt wear watch: 15
number of pupils in the class: 40