Question

How many seconds old will someone be at the very moment they turn 10 years old?

Answer 1

Either `315,532,800` seconds or `315,618,800` seconds, depending on the number of leap years, which can be `2 or 3` during `10` years.

Explanation:

We cannot give an absolute exact answer without knowing the date and year of birth, because of the effect of leap year.

Someone who is `10` will have experienced 2 leap years for sure, and perhaps `3`.

Let's ignore the leap years for now.....

To find the number of seconds in a year:

year`rarr` days `rarr` hours `rarr` minutes `rarr` seconds

`1 xx365 xx24xx60xx60 = 31,536,000` seconds in one year.

Seconds in `10` years: `315,360,000`

Seconds in one day: `24 xx60xx60 =86,000` seconds

So if we include `2` leap years:

`315,360,000 +2 x 86,000 = 315,532,800` seconds

Including `3` leap years gives: `315,618,800` seconds