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?

x/y is equal to students/days.

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

Yes

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.
1Γ·1/4=1Γ—4/1=4 days.

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To find out for how many more days the food will last after 20 students leave the hostel, we need to calculate the revised number of days based on the new number of students.

Here's how we can do that:

1. Calculate the original consumption rate per day: Divide the number of students (320) by the number of days the food stock lasts (80).
Original consumption rate = 320 students / 80 days = 4 students per day.

2. Calculate the number of students remaining after 20 days: Subtract the number of students who left (20) from the initial number of students (320).
Remaining students = 320 students - 20 students = 300 students.

3. Calculate the revised consumption rate per day: Divide the number of remaining students (300) by the number of days the food stock has left.
Revised consumption rate = 300 students / (80 - 20) days = 300 students / 60 days = 5 students per day.

4. Calculate the number of additional days the food stock will last: Divide the remaining stock of food by the revised consumption rate per day.
Additional days = Remaining stock of food / Revised consumption rate per day.

Since we don't have information about the stock of food, we cannot provide the exact number of additional days the food will last. But by following the steps above, you can calculate the answer when provided with the remaining stock of food.

Maths

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 ?

Thanx for this accurate solution

Thanks to pranjali and anonymous..

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.