1.

A 24 liters of cough syrup and water mixture contains cough syrup and water in the ratio 3 : 5. What liters of the mixture should be taken out and replaced with pure cough syrup so that the final mixture contains syrup and water in equal proportions?1). 20/3 liters2). 3 liters3). 32/5 liters4). 24/5 liters

Answer»

In 24 liters of MIXTURE, cough syrup = 3/8 × 24 = 9 liters and WATER = 15 liters

24 liters mixture must have 12 liters water and 12 liters cough syrup, 3 liters of water should be taken out, since we are only adding cough syrup.

Let y liters of mixture taken out such that 5/8 × y = 3,

On SOLVING, y = 24/5 liters


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