The solution in hierarchical order from most helpful to least helpful can be represented as follows:
- Solution 1
- Solution 2
- Solution 3
To understand this question, we need to know the concept of a conducive environment.
What is a conducive Environment?
A conducive environment is an environment free from noise and free from barrier that can create a disturbance in that environment.
From the given scenario:
- Fan A which comes with a new technology, requires only one fan in a room and it doesn't makes noise.
- Fan B which comes with an old technology, requires three fans in a room to work at its optimal rate and it makes noise.
While keeping the cost of the fan at the back of our mind, the solution in hierarchical order from most helpful to least helpful is as follows.
- Solution 1: Buy six of Fan B, placing three fan each classroom. This will cost less than 40 dollars and each room will get at least one.
- Solution 2: Buy one Fan A for one classroom, and buy two of Fan B for the other classroom. This will be exactly 40 dollars and both classrooms will be cooler. Two fans would not be as noisy as three fans.
- Solution 3: Buy two of Fan B, one for each classroom. This would be the cheapest option.
Learn more about a conducive environment here:
https://brainly.com/question/6271512
