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How many litres of a solution containing milk and water in the ratio 2:3 should be added to 30 litres of 70 % milk solution in order to get 60% milk solution?
  • a)
    15 liters
  • b)
    12 liters
  • c)
    25 liters
  • d)
    20 liters
Correct answer is option ''. Can you explain this answer?
Verified Answer
How many litres of a solution containing milk and water in the ratio ...
Let the number of liters of solution added be: x
The initial ratio of milk (m) to water (w) is:
=> m/w = 2/3
=> m = 2/5 of the solution
=> m = 40% of the solution
Acc. to the question, after adding x liters of 40% milk solution to 30 liters of 70% milk solution, we get 60% of (x+30) liters milk solution.
Hence, the equation becomes:
=> 40x + 30 * 70 = (x+30) * 60
=> 40x + 2100= 60x + 1800
=> 20x = 300
=> x = 15
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How many litres of a solution containing milk and water in the ratio 2:3 should be added to 30 litres of 70 % milk solution in order to get 60% milk solution?a)15 litersb)12 litersc)25 litersd)20 litersCorrect answer is option ''. Can you explain this answer?
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