How many years are there in $1.4$ billion seconds?

Question

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Answer 1

1 day contains $86400$ seconds and 1 year includes $365$ days.
Explanation:
In one year, there are $365 \times 86400$ seconds. It
means, one year includes $31, 536, 000$ seconds.
Divide time $(1.4$ billion) by this number to get how many
years:
$= \frac{1 , 4 0 0 , 0 0 0 , 0 0 0}{3 1 , 5 3 6 , 0 0 0}$
$= \frac{1 , 4 0 0 , 0 0 0}{3 1 , 5 3 6} = 44.394$ years.
It is approximately $44.4$ years.

Answer 2

1 day contains $86400$ seconds and 1 year includes $365$ days.

Explanation:

In one year, there are $365 \times 86400$ seconds. It
means, one year includes $31, 536, 000$ seconds.

Divide time $(1.4$ billion) by this number to get how many
years:

$= \frac{1 , 4 0 0 , 0 0 0 , 0 0 0}{3 1 , 5 3 6 , 0 0 0}$

$= \frac{1 , 4 0 0 , 0 0 0}{3 1 , 5 3 6} = 44.394$ years.

It is approximately $44.4$ years.