Scott and Tina are playing on a seesaw which is 4 meters long ... ...

  Scott and Tina are playing on a seesaw which is 4 meters long with a fulcrum in the middle. Tina is 30 kg and sits at one end, while Scott, 40 kg, sits so that they balance. Assume the seesaw itself is uniform and balanced. How far from the end should Scott sit in order to achieve balance? Image
(A) 0.5 m
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 07. Torques and Properties of Solids