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A village ,having a population of …

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A village ,having a population of 4000, requires 150 liters of water per head per day. It has a tank measuring 20 m× 15 m× 6m. Fir how many days will the water of this tank last?

Posted by Priya Yadav 5 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Prachi Sethi 5 years, 4 months ago

https://youtu.be/pIj-JQcBb9I

Abhay Pratap Singh 5 years, 4 months ago

Dghd

Gaurav Seth 5 years, 4 months ago

Given,

Dimensions of the tank = $20\hspace{1mm}m\times 15\hspace{1mm}m\times 6\hspace{1mm}m$

4000 people requiring 150 litres of water per head per day

The total volume of water required = $4000\times150 = 600000\ litres$

Let the number of days the water will last be $n$

We know,

The volume of a cuboid = $l\times b \times h$

$\therefore$ The volume of the water tank = $(20 \times15\times 6)\ m^3 = 1800\ m^3 = 1800000\ litres$

According to question,

$n\times600000 = 1800000$

$\\ \Rightarrow n= 3$

Therefore, the water in the tank will last for 3 days.

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