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  • Question
  • In a container, there is 960 ltr of pure milk from which 48 ltr of milk is replaced with 48 ltr of water, again 48 ltr milk is replaced by same amount of water, as this process is done once more. Now, what is the amount of pure milk?


  • Options
  • A. 901.54 ltr
  • B. 821.54 ltr
  • C. 719.64 ltr
  • D. 823.08 ltr

  • Correct Answer
  • 823.08 ltr 

    Explanation

    Amount of pure milk= a(1 ?b/a)n(n = 3, a = pure milk and b = amount replaced)= 960 (1 ?48/960)^3= 960(1-1/20)^3= 960 * 19/20 * 19/20*19/20= 823.08 lt.


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