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Question

A bucket contains 20 liters of saltwater. From this bucket, 2 liters of saltwater was taken out and replaced by normal water. This process was repeated further two times. How much suck water is now contained by the bucket?

  • 12.44
  • 13.46
  • 14.58
  • 15.60
Answer- C

Amount of salt water left after 3 operations

= 20 ((1 - (2/20))³ litres

= 20 * 9/10 * 9/10 * 9/10 = 14.58 litres.