I need help with this operating system question:

Use the code below to answer the following questions.

for(int x = 0; x < 20; x++) z(x) = a(x) + b(x); 

How many identical operations need to be performed?

On how many different objects must the identical operation(s) be performed?

If a system contains one (1) processor, how many steps are required to perform the code above?

If a system contains five (5) parallel processors, how many steps are required to perform the code above?

If a system contains ten (10) parallel processors, how many steps are required to perform the code above?