We can use ratio and proportion to find the number of chaperones
Let \(x\) represent the number of chaperones.
Number of Students Number of Chaperones
25 2
53 \(x\)
If 25 corresponds to 2, then 53 will correspond to a value more than 2. If more, less divides, hence
\(x=\frac{2 \times53}{25}\)
\(x=\frac{106}{25}\)
\(x=4.24\)
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
