How many seconds are in a stopwatch showing 4 hours 3 minutes and 10 seconds?

4 (3600) + 3 (60) + 10

=14400 + 180 + 10

= 14590 seconds

4 hrs 3 minutes 10 seconds

1 hr = 60 minutes ... so 4 hrs = (4 * 60) = 240 minutes ...

so we now have 240 + the 3 minutes = 243 minutes and 10 seconds

1 minute = 60 seconds ... so 243 minutes = (243 * 60) = 14580 seconds

so we end up with 14580 seconds + 10 seconds = 14590 seconds <==