Question

A girls hostel had ration for 120 girl students for 32 days. After 7 days, 20 girls left the hostel.
How long will the remaining ration last?​

Answer 1

Answer:

100*120=8*x

or x= 12000/ 80 = 150 days

Answer 2

Answer:

30 days is answer.

So, this is inverse proportion

Now , it is given that ration for 120 girls is for 32 days and also given that After 7 days 20 girls left the hostel . By this we conclude that -

If , we subtract 7 from 32 and 20 from 100 becoz

girls left the hostel and and in question given after 7 day it means that girls has eaten 7 day and if we subtract from 32 we got 25

girls =120 ,100

days= x ,25

so , 120x25

• 100x 1 ( we can take x as 1 only example)

1. Now , we will get 30 days by dividing the above equation ..
2. Hope this may help u