Respuesta :

Take a 365 day year.  365 = 3.65 * 10^2 days.

There are 24 hours in a day:-   24 = 2.4 * 10^1

So the number of hours in 1 year = 3.65 * 10^2 * 2.4 * 10^1

= 8.76 * 10^3 hours (answer).

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