Torque of suspended meter stick

[Punkyc7]

Homework Statement

A uniform 1.0-N meter stick is suspended horizontally by vertical strings attached at each end. A2.0-N weight is suspended from the 10-cm position on the stick, another 2.0-N weight is suspendedfrom the 50 cm position, and a 3.0-N weight is suspended from the 60 cm position. What is the tension in the string attached at the 100-cm end of the stick?
a. 1.9 N
b. 3.0 N
c. 3.5 N
d. 4.0 N
e. 4.4 N

Homework Equations

sum of torques and sum of forces

The Attempt at a Solution

2*.1+2*.5+3*.6=F(1)

i get the tension to be 3 but the correct one should be 3.5, i don't see where i lose the .5 Newtons

 

[flatmaster]

Does the meter stick have mass? Where does the torque for the stick's mass act?