Okay folks, I'm keen to get a response to this brain teaser!!!
Let's say you're looking at a conveyor belt... The width = 2m, and the length = 10m.
Okay... This conveyor belt is moving from right to left at 1m/sec , meanwhile, you're scanning across the conveyor belt from right to left at 2m/sec. (so you're scanning just faster than the conveyor belt is moving).
What is the total area of the conveyor belt that you have scanned.
(Takes 5 seconds to scan from right to left).
OKAY... Next.. let's give you all two more scenarios...
What is the area if:
A) Conveyor belt is moving right to left at 1m/sec, But you are scanning LEFT to RIGHT at 2m/sec?
B) Conveyor belt is moving right to left at 2m/sec, but you are scanning RIGHT to LEFT at 1m/sec (moving slower than the machine)?