Question 53388
Since Julius weightes twice as much as each brother, then the twin brothers have the same weight.
Weight of each twin = X, weight of the other twin=X, Julius weight=2x

equation= 2x + x + x = 240

4x=240
x=60
twin brothers weight 60 pounds each and Julies (2x)= 2(60)=120

60 + 60 + 120 = 240