How many seconds are there in a year ?

Question

Verified by Toppr

Answer 1

This is just a series of conversion factors.
$1 y e a r = \frac{3 6 5 d a y s}{1 Y e a r} \times \frac{2 4 h r s}{1 d a y} \times \frac{6 0 m i n}{1 h r} \times \frac{6 0 s e c}{1 m i n}$

You can see the all terms cancel seconds (numerator) and year (denominator)

Plugging into a calculator, $365 \times 24 \times 60 \times 60 = 31, 536, 000$

So the answer is that there are $31, 536, 000$ seconds in a year.

Answer 2

This is just a series of conversion factors.

1 y e a r = \frac{3 6 5 d a y s}{1 Y e a r} \times \frac{2 4 h r s}{1 d a y} \times \frac{6 0 m i n}{1 h r} \times \frac{6 0 s e c}{1 m i n}

You can see the all terms cancel seconds (numerator) and year (denominator)

Plugging into a calculator,

365 \times 24 \times 60 \times 60 = 31, 536, 000

So the answer is that there are

31, 536, 000

seconds in a year.