it is easier to get a higher scaled mark say 93 in 4u math however the reason that it is scaled up so high is because of the fact that it is hard say even get in the low to high 80s in 4u math but in english advanced it is easier to get in the 80s as such you will only be scaled up a few marks compared to 4u
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i'm talking about HSC marks, not scaled marks
a HSC mark of 93 in 4u maths has a similar scaled mark to a HSC mark of 97 in english advanced
a HSC mark of 93 in 4u maths requires likely a raw mark in the 70's or 80's whereas that 97 in english advanced prob needs very close to 97 raw to get.
the reason for scaling isn't just due to how hard the subject is btw
3u maths scales better than physics or chemistry but is arguably less challenging than them