Answer
See the graph below.
Work Step by Step
The two waves are moving at 100 m/s, which means that after 0.05 s, the two waves will be traveled a distance of 5 m.
And according to the initial overlapping position we got the following graph for the right wave after 0.05 s.
In the middle graph, we analyzed the overlapping to its two waves to make the solution easier.
