I think the second way to represent consecutive numbers is written in the opposite way. It should be (x-2), (x-1), (x), (x+1), (x+2) instead of (x+1), (x+2), (x), (x-1), (x-2).
In a way that is correct.But both the representations anyway represents set of 5 consecutive Natural numbers.
We use pie as 22/7 which is rational number, so how pie is irrational number ???
π (Pi) is a famous irrational number. We cannot write down a simple fraction that equals Pi. The popular approximation of 22/7 = 3.1428571428571... is close but not accurate.