Question

Express in second (i) 3 minute 15 second, and (ii) 5 hour 2 minute 5 second.

Answer 1

(i) 3 minutes 15 seconds
We know,
1 minute = 60 seconds
Therefore, 3 minutes = 3 * 60 = 180 seconds
Hence, 3 minutes 15 seconds = 180 + 15 = 195 seconds

(ii) 5 hours 2 minutes 5 seconds
We know,
1 minute = 60 seconds
1 hour = 60 minutes = 3600 seconds
Therefore, 5 hours = 5 * 3600 = 18000 seconds
Hence, 5 hours 2 minutes 5 seconds = 18000 + 120 + 5 = 18125 seconds.