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a decade is ten years so 3 of them would be thirty(30) years. thirty

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9y ago
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Wiki User

12y ago

1 decade = 10 years

3.3 decades = 3.3 * 10 = 33 years

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Wiki User

15y ago

20

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Wiki User

14y ago

30 dude

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Q: How many years are two decades?
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