• Numerical Ability - Mixture Problems
Question

From a container of milk, which contains 200 liters of milk, the seller replaces each time with water when he sells 40 liters of milk(or mixture). Every time he sells out only 40 liters of milk(or mixture). After replacing the milk with water 4th time, the total amount of water in the mixture is

  • A) 75.82L
  • B) 81.92L
  • C) 85.28L
  • D) 87.45L
  • E) None of these
Solution

Answer – B. 81.92L
Explanation :
The amount of Milk left after 4 operations  = 200(1-40/100)4
= 200 *(4/5)4= 200 * 256/625 = 81.92L; Amount of water = 200 – 81.92 = 118.08L

Answer – B. 81.92L
Explanation :
The amount of Milk left after 4 operations  = 200(1-40/100)4
= 200 *(4/5)4= 200 * 256/625 = 81.92L; Amount of water = 200 – 81.92 = 118.08L
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