The ratio is 2:3 so... the total of them is 5
25/5=5 Therefore we can multiply 5x2 and 5x3
The new ratio is 10:15
Since the ratio is hot lunch:a la carte, The 10 is the amount of hot lunches expected and 15 is amount of students expected to eat a la carte
So 10 students eat hot lunch
15 students eat a la carte