**(a). will give the output as:**

[20,40,90,110,20,40,90,110]

**(b). will give the output as:**

**Justification:** In the first statement x represents a list so when a list is multiplied by a number, it is replicated that many number of times.

The second y represents a series. When a series is multiplied by a value, then each element of the series is multiplied by that number.