Could give you 1 plat, depends on hard it is.
Too easy: A Dirt block and 1g.
Easy = 1000g
Medium = 10000g
Hard = 100000
Extreme = 1 Plat
Impossible (Not really) 1000000000g (1milg)
Hax: -9001g / -9001p (That's what you get for hacking.)
this couldn't really be a good idea because if you could get plat from these then sim9 would lose money, maybe not to the point of being homeless but he would lose a lot.
Nobody? Aww... :C