In a hostel, 75 students had food provision for 24 days. If 15 students leave the hostel, for how many days would the food provision last ?
Let the food will be for x days
No. of students Foor for days No. of students For days
75 24 75 - 15 = 60 x
(less students, more days)
∴ By inverse proportional
75 : x :: 60 : 24
⇒x=75×2460=30
∴ Food will last for 30 days