None of them around our way give a significant discount with a scholarship, they're mostly just extra tuition/opportunities.
Some academic scholarships can be stuff like 25% off fees with maybe a hand full of 100% free places, sometimes there will be music or sports scholarships too.
Though there tends to often be support for parents who can't afford fees in addition to the merit-based stuff, they kinda need to have this too in order to maintain charity status.