There are approximately **3652 days** in 10 years. Here’s a breakdown:

- We typically assume a year has
**365 days**. - However, every four years is a
**leap year**, which has 366 days due to an extra day added in February to account for the Earth’s rotation around the sun. - Over 10 years, there will be
**2 leap years** (since 10 divided by 4 is 2 with a remainder of 2). - Therefore, to calculate the total number of days, we do:

Number of days = (Years * Regular days per year) + Leap years

Number of days = (10 years * 365 days/year) + 2 leap years

Number of days ≈ 3650 days + 2 days

Number of days ≈ 3652 days

So, while 10 years has 10 * 365 = 3650 days on paper, accounting for leap years brings the total closer to **3652 days**.

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