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From a cask of milk containing 30 litres, 6 litres are drawn out and the cask is filled up with water. If the same process is repeated a second, then a third time, what will be the number of litres of milk left in the cask?

  • Option 1)

    0.512\: liter

  • Option 2)

    18\: liter

  • Option 3)

    14.38 \: liters

  • Option 4)

    15.36 \:liters

  • Option 5)

    12\: liters

Answers (1)

best_answer

X=30\: L

Y= 6\: L

N= 3

Final\: milk = X (1- \frac{Y}{X}) ^{n}

=30 (1-\frac{6}{30})^{3}

=30 \times 0.512

= 15.36\: L

Posted by

rishi.raj

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