This is an incomplete question, the image of given question is attached below.
Answer : The length of TY is, 60
Step-by-step explanation :
Give: In ΔTUV, Y is the centroid.
As we know the centroid of the triangle is divides median into 1:2 ratio. That means, the ratio is length of median from centroid to the side to length of median to opposite vertex.
Therefore,
WY : TY = 1 : 2
or,

Given:
WY = 30



Hence, the length of TY is, 60