How To Get Total Elapsed Time Of Multiple Queries

I am executing below two SQL's at a time in a .sql file and I want the total execution time of these two queries:-

set timing on;
select 1 from dual;
select 2 from dual;

The output of the above sql file is returning the results like below which is expected:-

1
----------
1

Elapsed: 00:00:00.01

2
----------
2

Elapsed: 00:00:00.00

I want the total execution time of the two SQL queries at a time, I mean post execution of the two queries I want to know the total execution time, in this case is execution case will be 00:00:00.01.