Bottle 1 contains a mixture of milk and water in 7 : 2

Bottle 1 contains a mixture of milk and water in 7 : 2 ratio and Bottle 2 contains a mixture of milk and water in 9 : 4 ratio. In what ratio of volumes should the liquids in Bottle 1 and Bottle 2 be combined to obtain a mixture of milk and water in 3 : 1 ratio? A 27 : 14 B 27 : 13 C 27 : 16 D (…)