One pack of cake mix is being stirred before being poured into two separate baking trays. The first tray can hold a certain amount of cups of the mix while the other holds 20 cups less than the first. If the total number of cups poured is 500, how many cups of batter does the second tray hold? Choose the correct choice from the following
A) 250  B) 260  C) 500  D) 280  E) 240
Tray one as t1 and tray two as t2.   T2= T1-20 cups as equation a.   t1+t2=500 cups in total as equation b.   substitute equation a into equation b, resulting in t1 +( t1-20)=500   transpose like terms, 2*t1=500 + 20   (2*t1)/2=520/2   t1=260, thus t2 is t1 less 20 cups, which is 240 cups.   Answer is 240.
<result>E</result>
One pack of cake mix is being stirred before being poured into two separate baking trays. The first tray can hold a certain amount of cups of the mix while the other holds 20 cups less than the first. If the total number of cups poured is 500, how many cups of batter does the second tray hold?