Kazipet, which has a population of 4000, requires 9 litres of water per person per day. It has a cuboidal tank measuring 15 m × 8 m × 6 m. If the tank is full of water then for how many days will the water of this tank last?

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RRC Group D Previous Paper 3 (Held On: 19 Sep 2018 Shift 1)
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  1. 25 days
  2. 30 days
  3. 10 days
  4. 20 days

Answer (Detailed Solution Below)

Option 4 : 20 days
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Detailed Solution

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⇒ Total water consumption of Kazipet of 1 day = 4000 × 9 = 36000 litres

⇒ Volume of cuboidal tank = 720 m3 = 720 × 1000 litres = 720000 litres

∴ The number of days for which water is available = 720000/36000 = 20 days
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