Originally Posted by
TizMe
Here's a Friday test for you.
Its now approx 7:25 pm in Singapore and is starting to get dark.
At exactly 7:30 pm, I will turn my light on. But after a further 5 minutes, I will turn it back off.
Then after an additional 2.5 minutes, I'll turn it back on, and then after an additional 1.25 minutes, I'll turn it back off.
Continuing on this way, in every interval after that, half of the previous interval, I flick the switch again.
So my question is:
At exactly 7:40 pm, is the light on, or is it off?