20 kg bag of bananas for 10 dollars This is the given situation in which in every 20 kilogram of bananas, the costs is 10 dollars. Now, let us calculate how much each kg of banana costs will. Let’s solve for the unit rate of this given data: => 20 kg bag of banana => 10 dollars = cost Now, let’s divide this to get the answer that we need. => 20 / 10 => 2 bananas per dollars = 2 banana/dollars Or 10 / 20 => 0.5 dollars/1kg of banana