Question

the avegrage age of children of class 7 is 12 ad 3 months express this age in seconds​

Answer 1

Answer:

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Explanation:

STEP BY STEP

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.

hope it's help you くコ:彡

Answer 2

Answer:

386,467,200

Explanation:

12 years: (4380 + 3 leap days)

3 months: 90

Total days: 4473

Days into second : Days*24*60*60

= 4473*24*60*60

answer is above