I had checked ChatGPT and it did not produce the correct answer!
Well thanks for your lectures!
I also asked ChatGPT but I discovered it had no close answer so I did the math again and with a simple step some hours ago before checking here for the final answer, I discovered I was close to the final answer.
using the simple step; Old difficulty= 42
Currently block reward which is = 3.15
= 42 ÷ 3.125
my final answer came up as = 13.44 which is some how close to your final answer of 13.125.
Recall the question said the current difficulty is halved (current is around 84 Trillion)
And using same block reward was the first flaw of the working.
I don't really know Huh I guess that was my own interpretation of what I read although it's totally wrong but my instinct said I should share, and then clarification would be the result right ?
Yeah. It goes a long way in assisting self growth.
I think what you did is find the difficulty per reward in the question.
understanding codes isn't my strong suit
So didn't understand what's on the link much.
Was the 4 as a result of the fact that not less than 75% is 25% (100%-75%).
Where 25% is same as 1/4 which looks similar to hosseinimr93 solving
52.5*1/4 = 52.5/4 .
I don't know if what I did is correct but if it was, does that mean that if the reverse was the case and the block time of the current epoch is 1 hour and falls to 10 minutes.( using difficulty of 52.5 Trillion).
Would the difficulty increase to 52.5 * 300%/100% =52.5 * 3 =157.5 Trillion.
Since trying 52.5*60/10 =315 T
Where 1 hour =60 min.
And the increment was (315-52.5)/52.5 *100%/1 = 500%
Which is greater than 300%.