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There are 100 students in a hostel. Food provision for them is for 20 days . How long will these provisions last if 25 more students join the group?



More number of students lesser number of days.thus they are in inverse proportion
relation of inverse proportion is
x1y1 = x2y2
100×20=125× y2
16= y2
thus the food provision will last for 16days if 25 more students join the hostel.

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