1/4 of all the juniors and 2/3 of all the seniors are going on a trip. If there are 2/3 as many juniors as seniors, what fraction of the students are not going on the trip? Choose the correct choice from the following answers.
A) 4/9
B) 1/2
C) 2/3
D) 1/3
E) 5/6
J be the number of Juniors and S be the number of Seniors.   there are 2/3 as many juniors as seniors   23∗S=J   J/S=23   Going on Trip = J4+23∗S   Fraction = (J4+23S)/(J+S)   = (2/3*1/4 + 2/3 )/ (2/3 +1 )   = 1/2   Fraction not on trip = 1/2   ANSWER:1/2
<result>B</result>
1/4 of all the juniors and 2/3 of all the seniors are going on a trip. If there are 2/3 as many juniors as seniors, what fraction of the students are not going on the trip?