1.

The ratio of the quantities of hydrochloric acid to water in 48 liters of mixture is 5:3 .How many liters of water should be added to make their ratio 3:2 ?

Answer»

Total quantity = 48 litres

Ratio of hydrochloric acid to water = 5: 3

Quantity of acid = 5/(3+5) * 48 = 5/8 * 48 = 30.

Quantity of water = 3/(3+5) * 48 = 3/8 * 48 = 18.

If the ratio of acid to water is 3: 2

Quantity of acid = 3/(2+3) * 48 = 3/5 * 48 = 29.

Quantity of water = 2/(2+3) * 48 = 3/5 * 48 = 19.

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