A village, having a population of 4000 , requires 150 litres of water per head per day. It has a tank measuring $ 20 \mathrm{~m} \times 15 \mathrm{~m} \times 6 \mathrm{~m} $. For how many days will the water of this tank last?
Given:
A village having a population of $4000$ requires $150$ litres of water per head per day. It has a tank measuring $20\ m \times 15\ m \times 6\ m$.
To do:
We have to find the number of days the water of the tank will last.
Solution:
Population of the village $= 4000$
Water required per head per day $= 150$ litres
Therefore,
Total water required $= 4000 \times 150$
$= 600000$ litres
Dimensions of the tank $= 20\ m \times 15\ m \times 6\ m$
Volume of the tank $= 20 \times 15 \times 6$
$= 1800\ m^3$
Capacity of water in litres $= 1800 \times 1000$
$= 1800000$ litres
The number of days the water will last for $= \frac{1800000}{600000}$
$= 3$
Hence, the water of the tank will last for $3$ days.
Related Articles
- A village having a population of $4000$ requires $150$ litres of water per head per day. It has a tank measuring $20\ m \times 15\ m \times 6\ m$. For how many days will the water of this tank last?
- A cuboidal water tank is \( 6 \mathrm{~m} \) long, \( 5 \mathrm{~m} \) wide and \( 4.5 \mathrm{~m} \) deep. How many litres of water can it hold? \( \left(1 \mathrm{~m}^{3}=1000 t\right) \).
- A godown measures \( 40 \mathrm{~m} \times 25 \mathrm{~m} \times 15 \mathrm{~m} \). Find the maximum number of wooden crates each measuring \( 1.5 \mathrm{~m} \times 1.25 \mathrm{~m} \times 0.5 \mathrm{~m} \) that can be stored in the godown.
- A cuboidal water tank is $6\ m$ long, $5\ m$ wide and $4.5\ m$ deep. How many litres of water can it hold?
- The capacity of a cuboidal tank is 50000 litres of water. Find the breadth of the tank, if its length and depth are respectively \( 2.5 \mathrm{~m} \) and \( 10 \mathrm{~m} \).
- A rectangular tank \( 15 \mathrm{~m} \) long and \( 11 \mathrm{~m} \) broad is required to receive entire liquid contents from a full cylindrical tank of internal diameter \( 21 \mathrm{~m} \) and length \( 5 \mathrm{~m} \). Find the least height of the tank that will serve the purpose.
- In a hospital used water is collected in a cylindrical tank of diameter \( 2 \mathrm{~m} \) and height \( 5 \mathrm{~m} \). After recycling, this water is used to irrigate a park of hospital whose length is \( 25 \mathrm{~m} \) and breadth is \( 20 \mathrm{~m} \). If tank is filled completely then what will be the height of standing water used for irrigating the park?
- A cylindrical tank full of water is emptied by a pipe at the rate of 225 litres per minute. How much time will it take to empty half the tank, if the diameter of its base is \( 3 \mathrm{~m} \) and its height is \( 3.5 \mathrm{~m} \)? [Use \( \pi=22 / 7] \).
- What per cent of \( 108 \mathrm{~km} / \mathrm{h} \) is \( 15 \mathrm{~m} / \mathrm{s} \) ?
- Find the cost of digging a cuboidal pit \( 8 \mathrm{~m} \) long, \( 6 \mathrm{~m} \) broad and \( 3 \mathrm{~m} \) deep at the rate of Rs. 30 per \( \mathrm{m}^{3} \).
- The rain water from a roof of dimensions \( 22 \mathrm{~m} \times 20 \mathrm{~m} \) drains into a cylindrical vessel having diameter of base \( 2 \mathrm{~m} \) and height \( 3.5 \mathrm{~m} \). If the rain water collected from the roof just fills the cylindrical vessel, then find the rain fall in \( \mathrm{cm} \).
- 500 persons have to dip in a rectangular tank which is \( 80 \mathrm{~m} \) long and \( 50 \mathrm{~m} \) broad. What is the rise in the level of water in the tank, if the average displacement of water by a person is \( 0.04 \mathrm{~m}^{3} \)?
- A farmer runs a pipe of internal diameter \( 20 \mathrm{~cm} \) from the canal into a cylindrical tank in his field which is \( 10 \mathrm{~m} \) in diameter and \( 2 \mathrm{~m} \) deep. If water flows through the pipe at the rate of \( 3 \mathrm{~km} / \mathrm{h} \), in how much time will the tank be filled?
- A river \( 3 \mathrm{~m} \) deep and \( 40 \mathrm{~m} \) wide is flowing at the rate of \( 2 \mathrm{~km} \) per hour. How much water will fall into the sea in a minute?
- A park, in the shape of a quadrilateral \( \mathrm{ABCD} \), has \( \angle \mathrm{C}=90^{\circ}, \mathrm{AB}=9 \mathrm{~m}, \mathrm{BC}=12 \mathrm{~m} \), \( \mathrm{CD}=5 \mathrm{~m} \) and \( \mathrm{AD}=8 \mathrm{~m} \). How much area does it occupy?
Kickstart Your Career
Get certified by completing the course
Get Started