Question

if 45 students have a stock of food for 2 month then how many days the same food will last if 18 students leave

Answer 1

Let the student have x
45\2=x\18
22.5*18=x
408=x
18 student have 408 days food

I hope answer is correct

Answer 2

45 students =60 days
1 students=60/45=4/3
45-18 student = 27 students
4/3=28=28×3/4=21 days