Question

A hostel mess has provisions for 200 students for 30 days. If 100 new students join the hostel, how long will the provisions last?

Answer 1

Answer:

60 days

Step-by-step explanation:

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Answer 2

Let the provision day to be last now x

Let the provision day to be last now xstudents at beginning 200

Let the provision day to be last now xstudents at beginning 200and provision 30 days

Let the provision day to be last now xstudents at beginning 200and provision 30 daysbut 100 students join so obviously provision decrease so its inverse variation.

Let the provision day to be last now xstudents at beginning 200and provision 30 daysbut 100 students join so obviously provision decrease so its inverse variation.200×30=300×x

Let the provision day to be last now xstudents at beginning 200and provision 30 daysbut 100 students join so obviously provision decrease so its inverse variation.200×30=300×x6000=300x

Let the provision day to be last now xstudents at beginning 200and provision 30 daysbut 100 students join so obviously provision decrease so its inverse variation.200×30=300×x6000=300xx=20