Question

A hostel spends 3200 on food for 20 students for 30 days. If they spend * 2400
food for 30 students, for how many days will the food last?​

Answer 1

m1d1h1 /w1=m2d2/w2

20*30/3200=30*x/2400

x=15

hence food will last for 15 days