Question

on converting 12 hours 7 minute into second we get

Answer 1

on multiplying 12×60 for converting it into min. you will get 7200 minutes then multiply 7200×60 for converting it into seconds and you will get 432000 then add 7×60 for converting 7 min. into seconds you fill have to add 432000+420then you will get your ans. that is . 43620 seconds
I hope that it will help you

Answer 2

43620 seconds is the answer