RANDOM QUESTION
You have a square lawn of X metre sides. You have a lawn mower that can mow 1 m^2 every 2 seconds. When you turn it takes 4 seconds to turn AND mow that 1m^2 of lawn you're turning on.
You have two methods of mowing:
The Line Method: Mowing in parallel lines on the lawn
The Perimeter Method: Mowing the perimeter of the lawn and continue mowing as the perimeter gets slower.
Prove mathematically that The Line Method and The Perimeter Method will take the same amount of time for any value of X (assuming X is a positive integer).
Answer:
Spoiler for Hidden:
Formula for The Line Method:
Formula for The Perimeter Method:
Proof that they are the same: