Previous Year Questions

Quantity of spirit in mixture A initially = 80 * 7/16 = 35 L

Quantity of water in mixture A initially = 80 * 9/16 = 45 L

Quantity of sprit in mixture B when 20 L mixture from A is poured to B = 20 * 7/16 = 8.75 L

Quantity of water in mixture B when 20 L mixture from A is poured to B = 20 * 9/16 = 11.25 L

Quantity of spirit in mixture A when 20 L of water is added = 35 - 8.75 = 26.25 L

Quantity of water in mixture A when 20 L of water is added = 45 - 11.25 + 20 = 53.75 L

Ratio of spirit to water in mixture A = 26.25: 53.75 = 21: 43

Quantity of sprit in mixture B when 32 L mixture from A is poured to B = 8.75 + 32 * 21/64 = 19.25 L

Quantity of water in mixture B when 32 L mixture from A is poured to B = 11.25 + 32 * 43/64 = 32.75 L

Required ratio = 32.75: 19.25 =131: 77