Since we know that 32% of the yams Adnan uses for his dish go to waste and we know that he has 5 kilograms of them we can now calculate his new amount of yams after making the dish. First, you would do 32% of 5 which is 1.6. Next, you would subtract 5 by 1.6 getting a grand total of 3.4 kilograms or C.