If workers were able to pave 1/3 of your driveway in 40 minutes if they work at same rate what portion of driveway will they pave in one hour

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.