Question

the average age of Children of class 7 is 12years and 3 months express this age in second.​

Answer 1

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.

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