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NTSE Sample Paper NTSE SAT Practice Test-12

  • question_answer
    What is the time needed to empty a cuboidal water reservoir 10m long, 9 m wide and 3m deep at the rate of 45 litres per minute?

    A) 100 hrs 

    B) 90 hrs

    C) 80 hrs                           

    D) 60 hrs

    Correct Answer: A

    Solution :

    [a] \[\frac{10\times 9\times 3\times 10,00,000}{45\times 1000\times 60}=10\,\,hrs\]


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