Question

a hostel 400 students have food for 30 days.
a) What will be the total number of students if 200 students joined the
hostel?
b) If 200 students arrive, how long will the food cost?
c) If 40 students leave from the hostel, how long will the food cost? ​

Answer 1

Step-by-step explanation:

Food available= 400 x 30 =12,000- units.

Number of units of food left after 20- days = 12,000-(400 x 20) = 4000.

Number of days the food will be available for the remaining (400–200)= 200- students= 4000/200= 20- days.

So the food will last for (20+20–30)= 10- more days.