The problem is not about not doing maths/physics. Theres always bridging courses and if he can't cope that, he could'nt have coped with maths/physics anyway...
For now, to get over 60 UAI with those subjects. I recommend at least 70 in each of your subjects... Cuz i did a quick check with my subjects.
Eng Adv
Maths
3U Maths
Phy
Econ
Bio
with 70 each, gave me 62.95 UAI, so yea considering the scaling of your subjects, aim for at least a HSC mark of 70 in each of them.
For now, to get over 60 UAI with those subjects. I recommend at least 70 in each of your subjects... Cuz i did a quick check with my subjects.
Eng Adv
Maths
3U Maths
Phy
Econ
Bio
with 70 each, gave me 62.95 UAI, so yea considering the scaling of your subjects, aim for at least a HSC mark of 70 in each of them.