Question

A school hostel has enough food for 600 student for 30 days .if 120 student join the hostel,how long will the food last?

Answer 1

A.T.Q

600students = 30days.
120students = x days.

x = 600/120 × 30
x = 160

Therefore the food will last for 160 days....

Answer 2

Answer:

Let the no. Of days be ×

Before | after

No. Of students= 600 | 720

No. Of days=. 30. | ×

According to direct and inverse variation:

600*30=720×

×=600*30÷720=25

×=25 days

Step-by-step explanation:

First sum all the students=600+120=720

According to direct and inverse variation rule: x1y1=x2y2=600*30÷720= 25

The answer is 25 days

Hope this helps