Answer :
Answer:
40 minutes
Explanation:
The CPU is the brain of the computer system. It executes all the computing tasks and controls hardware operation. A CPU can have a single core or a multi-core, and can execute processes sequentially or in parallel.
Parallel computing executes multiple processes in parallel and at the same time, while sequential computing executes processes one at a time.
When two processes to be executed are sent to a single core sequential CPU, and if the processing for one process is 20 minutes, it will take the second task another 20 minutes, giving a total of 40 minutes to execute both processes.