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a decade is ten years so 3 of them would be thirty(30) years. thirty
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One decade is 10 years, so 5 decades = 50 years. There are: 5*10 = 50 years because a decade is 10 years
well a decade is 10 year so 2 decades will be 20 years
A decade consists of ten years, so thirty years is three decades.
There are 120 years in 12 decades
There is ten years in one decade, so there are 60 years in 6 decades.
10 years are in a decade 100 years are in a century
There are 200 years in 20 decades