Question

the hostel of a college having 320 students has a stock of food for 80 days if 20 students leave the hostel after 20 days for how many more days will the food last?

Answer 1

x/y is equal to students/days.
Therefore,320students/60 days is equal to 300 students / y days.
It is indirect variation.
320× 60= 300y
you = 320/300×60 =64 days.
Hence the food will last more 4 days

Answer 2

320*80=25600
Therefore,Number of students 320-20=300
Food will last for (80-60)=60days for 320 students
So,320*20/300=64 days
So the food will last for 64 days.

Answer 3

Thanks to pranjali and anonymous..

Answer 4

Thanx for this accurate solution

Answer 5

Maths

Answer 6

In a mess of a MBA college having 320 students has a stock of food for 80 days .If 20 students left the college after 20 days,for how many more days will the food last ?

Answer 7

Yes

Answer 8

Satish takes 6 days to paint the house.
So, in one day Satish paint 1/6 of the house.
Similarly, Ritesh paint 1 by 12 of the house in one day.
Working through in a day they will paint.
1/6+1/12=2+1/12=3/12
=1/4 of the house.
To paint one by four of the house together day take one day.
Thus,to paint 1 house, we have to find out how many 1/4th are there in one whole.
1÷1/4=1×4/1=4 days.


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