数学题怎么都读不懂==
以下这道题就是读不懂了.
Forfoodproductstobelabeled"light,"theU.S.FoodandDrugAdministrationrequiresthatthealteredproductmusteithercontainone-thirdorfewercaloriesthantheregularproductoritmustcontainone-halforlessfatthantheregularproduct.IfaservingofMiracleWhip?Lightcontains20caloriesand1.5gramsoffat,thenwhatmustbetrueabouteitherthenumberofcaloriesorthegramsoffatinaservingofregularMiracleWhip?