The largest number is 140,625 = (5/1)^(6) * 3^(4/2)

h=4

A; There are 8 possible answers:
3 and 5,
3 and 6,
4 and 4,
4 and 5,
2 and 5,
2 and 6,
1 and 5,
1 and 6

23. See this link for more info

A: after 4 revolutions.
This is a famous 1982 SAT multiple choice problem that did not provide the correct answer.
When it resurfaced in 2023. there were many viral videos and memes from Scientific American to TikTok.