Question

. The average age of children of class 7 is 12 years and 3 months. Express this age in seconds.

Answer 1

Answer:

Average age is 12 years and 3 months

1 year is having 365 days (assuming only in leap year)

1 day is having 24 hour

1 hour is 60min

1 min is 60 second

Now doing all these in reverse order,

1 hour = 60×60 second

1 day = 24×60×60 second

1 year = 365×24×60×60 second

So, 12 year = 12×365×24×60×60 second = 378432000 sec

1 months = 30 days

3 months will be 3×30 days

= 3×30×24×60×60 second = 7776000 sec

12 years and 3 months = 378432000 + 7776000

= 386208000 second

Answer 2

Answer:

One day has 3600×24 = 86400 seconds. And 7 years 3 months has 7×365 + 3×30 days = 2555 + 90 = 2645 days (generalised). So the number of seconds will be 2645×86400 = 228528000 seconds.