Question

School guidelines require that there must be at least 2 chaperones for every 25 students going on a school. How many chaperones must there be for 53 chaperones?

Answer 1

`6` chaperones will be needed.

Explanation:

1 to 25 students require (at least) 2 chaperones.
26 to 50 students require (at least) 4 chaperones.
51 to 75 students require (at least) 6 chaperones.

This is an example of use of the ceiling function.

The ceiling of a value `x` (sometimes written as `|~x~|`) is defined as the smallest integer greater than or equal to `x`.

In the given example we are asked for
`color(white)("XXX")2xx|~53/25~|`
`color(white)("XXXXXXXXX")`which is `6`