Ahostel having strength of 300 students requires on an average 36000 l of water per day. it has a tank measuring 10 m × 8 m × 9 m. for how many days will the water in the tank filled to capacity last?

The water in the tank filled to capacity lasts 20 days.

Step-by-step explanation:

Total number of students in the hostel = 300

The average need of water  per day = 36,000 L

The dimensions of the tank =   10 m  ×   8 m   ×   9 m

Now, the capacity of the tank = LENGTH X WIGHT X HEIGHT

     = 10 m   ×   8 m   ×   9 m =  720 cubic meters

Now,

⇒

So, the capacity of the tank = 720,000 L

and the average usage of water by 300 students =

⇒

or, number of days = 20

Hence,  the water in the tank filled to capacity lasts 20 days.

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