Can you solve this ? Zagreb UNI humanities entrance exam

[Duke]

Question no.2:

P/probability= 39/ 24 + 56 + 39....P=39/119= 0.327=32.77 %

yea i did the math wrong there, i went 119/39, and that seemed about right to me

it was late

as an excuse i dint touch math in a decade

[Jana]

well that makes whole lot difference, i took into account while reading it that it drove 1 hour for 90km before turning, which then left me 144km taken in 100 minutes

also this one is bit confusing as written
From 30 high school graduates, 8 applied for architecture, 20 for humanities, and 30 for medicine. How much candidates did apply for at least one course ? And the most that applied one course ?


because as written, all 30 took at least 1 course, i got the minimum right

Spoiler!

Ovako piše: koliko ih je najmanje prijavilo jedan studij? A najviše?

The solution: 30-(20 + 8)=2
30-20=10

This one is complicated to explain....You solved them great Duke, sepecially after a decade I haven't touched maths in 5 yrs, and find them difficult to do in such short time without calculator. Anway, some brain challenge is always good.