Problem: two vessels contains equal number of mixtures milk and water in the ratio 3 : 2 and 4 : 1 . both the mixtures are now mixed thoroughly . find the ratio of milk to water in the new mixture so obtained ?
Rationale: "the ratio of milk and water in the new vessel is = ( 3 / 5 + 4 / 5 ) : ( 2 / 5 + 1 / 5 ) = 7 / 5 : 3 / 5 = 7 : 3 answer is d"
annotated_formula: divide(add(multiply(3, divide(add(4, 1), add(3, 2))), 4), add(multiply(2, divide(add(4, 1), add(3, 2))), 1))