The wages of workers (W1, W2, W3, W4, W5, W6) for different tasks (T1 , T2, T3) are given

What is the difference in average wages per worker for task T1 and task T3?

A

$$\frac{1}{3}$$

B

$$\frac{1}{2}$$

C

$$\frac{2}{3}$$

D

$$\frac{1}{4}$$