Question

5hour 2min 5 sec express in seconds

Answer 1

5×60= 300 mins +2 mins = 302 mins
302×60=18120 sec+ 5 sec =18125 sec.

Answer 2

5×60+2×60+5
300min.+120sec+5sec.
300×60+120+5
18000sec+120sec.+5sec.
18125