Calculate the time that she spent at her friends house and then do the subtraction to calculate the answer.

For first hour of day(00:00 to 00:59), add 12 hours and write ï¿½amï¿½

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

From 01:00 to 11:59 no change except to add ï¿½amï¿½ .

To find the total time of journey we need to add the time taken by train and the time taken by bus.

There are 60 minutes in an hour.

convert 60 minutes to an hour.

From 1:00 pm to 11:59 pm add ï¿½12ï¿½ to the hour and take off the pm.

We will convert 60 minutes to an hour.