Answer: 25 students
Step-by-step explanation:
The students who don't wear glasses to the whole class is 3:5. If 15 is the '3' then 25 would be the 5.
Answer:
25
Step-by-step explanation:
Given: The ratio of students who wear glasses to the total class is [tex]2:5[/tex]
To Find: If there are [tex]15[/tex] students who don't wear glasses how many students are in the class.
Solution:
Let total students in class are[tex]=\text{t}[/tex]
fraction of students of total class who wear glass[tex]=\frac{2}{5}[/tex] [tex]\text{t}[/tex]
fraction of students of total class who don't wear glass[tex]=1-\frac{2}{5}[/tex] [tex]\text{t}[/tex]
[tex]\frac{3}{5}[/tex] [tex]\text{t}[/tex]
Number of students who don't wear glass[tex]=15[/tex]
[tex]\frac{3}{5}\text{t}=15[/tex]
[tex]\text{t}=\frac{5}{3}\times15[/tex]
[tex]\text{t}=25[/tex]
Hence there are [tex]25[/tex] students in the class
