Question 1204131
watch is 12 minutes fast.
it showed 7:15 am when the time was 7:03 am
showing 15 minutes past 7 when the actual time is 3 minutes past 7 means the watch is 12 minutes fast.


the appointment was for 9:45 am.
when he arrived, his watch said the time was 10:40 am.
since his watch is 12 minutes fast, the actual time he arrived was 10:28 am.


10:28 am minus 9:45 am means hw was 28 + 15 = 43 minutes.
15 minutes was from 9:45 am to 10:00 am.
28 minutes was from 10:00 am to 10:28 am.


he was 43 minutew late for his appointment.