Question

convert into sec 3hr40sec​

Answer 1

Step-by-step explanation:

1 hour = 60min

1 minute = 60sec

60 min = 60 × 60 = 3600second

1hour = 3600second

3hr + 40sec = 3×3600 + 40 sec

= 10800 + 40sec = 10840sec

3hr + 40sec = 108400sec

i hope it helps you

Answer 2

3 hr is = 10,800 sec

=10, 800 sec + 40sec

10,840sec