To find the answer we need to subtract the shorter time from the longer one.

From 1:00 am to 12:59 pm, no change except to take off am or pm

From 13:00 to 23:59, subtract 12 from hour and add ï¿½pmï¿½

In this question we need to convert 2 hour to 30 minutes.

From 1:00 am to 12:59 pm, no change except to take off am or pm

Subtract hours from hours and minutes from minutes.

First calculate the time taken by them to submit the test and then compare them.

From 1:00 am to 12:59 pm, no change except to take off am or pm

There are 60 minutes in an hour.