• Numerical Ability - Mixture Problems
Question

In mixture of milk and water 270 I, there is milk and water in ratio 7 : 5. Howmuch water is removed to get ratio 9 : 5 finally

  • A) 4 l
  • B) 14 l
  • C) 19 l
  • D) 21 l
  • E) 25 l
Solution

Answer (E): 25 l

Explanation:

Quantity of milk in mixture = (7/12) × 270 = 157.5 l

Quantity of water in mixture = (5/12) × 270 = 112.5 l

Let the water removed be x

Total quantity of water = (112.5 - x) l

Quantity of milk = 157.5

157.5/(112.5 - x) = 9/5

x = 25 

Answer (E): 25 l

Explanation:

Quantity of milk in mixture = (7/12) × 270 = 157.5 l

Quantity of water in mixture = (5/12) × 270 = 112.5 l

Let the water removed be x

Total quantity of water = (112.5 - x) l

Quantity of milk = 157.5

157.5/(112.5 - x) = 9/5

x = 25 
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