We can use ratio and proportion to find the number of chaperones
Let [tex]x[/tex] represent the number of chaperones.
Number of Students Number of Chaperones
25 2
53 [tex]x[/tex]
If 25 corresponds to 2, then 53 will correspond to a value more than 2. If more, less divides, hence
[tex]x=\frac{2 \times53}{25}[/tex]
[tex]x=\frac{106}{25}[/tex]
[tex]x=4.24[/tex]
Since humans are whole entities, we round up to the nearest whole number which is 5.
The point is that we are dealing with humans and 4.24 means 4 chaperones plus 0.24 chaperone. since we cannot add 0.24 of the next chaperone to the 4, we add one full chaperone.
So there are at least 5 chaperones
