Question

The population ofavillage is 4000. Each person in the village requires 150 litre of water every day. There is a water tank in the village with length, breadth and height 20 m, 15 m and 6 m respectively. If this tank is filled to the brim with water then for how many days, the water requirement would be met?
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Answer 1

Answer: 3 days

Step-by-step explanation:

Given :-

Population of village = 4000

Village water requirement per person = 150 L/day

Total village water requirement = 150 L × 4000/day = 600000 L/day

Measurements of cuboidal water tank :-

Length = 20 m

Breadth = 15 m

Height = 6 m

It is also given that the tank is filled entirely.

Volume of the tank = l × b × h = 20 × 15 × 6 = 1800 m³

Now we know that 1 m³ = 1000 L

→ 1800 m³ = 1800000 L

Number of days the water will last = $\frac{Total-water-available-in-tank}{Village-water-requirement-per-day}$

→1800000 L / 600000L

⇒ 3 days

So, the water in the village will last for 3 days.

Answer 2

Answer:

3 days

Step-by-step explanation:

total population = 4000

each person requires = 150

total requirement= 4000×150= 600000

volume of tank= 20×15×6= 1800m³

1m³ = 1000l

therefore quantity = 1800000l

number of dys = 1800000/600000

= 3 days