The number of chickens reared by Chalerm, Kan and Wach is in the ratio 4:3 :5. The total number of chickens is 660. Kan sells 50 of his chickens to Chalerm and 25 chickens to Wach. After this sale, what is the ratio of Chalerm's, Kan's and Wach's chickens?

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

Then just do it (lol)

The answer is 30 minutes to an hour