One century or 100 years.
One decade equals ten years, and nine decades equal 90 years.
70 a decade is ten years
One decade equals ten years.
A decade is equal to ten years.To find the answer multiply 25 by 10.The answer is 25 decades is equal to 250 years.
Ten decades equal one century therefore twenty decades equal two centuries.
A decade is ten years, so 7 decades in 70 years.
A decade is ten years. So, four decades is forty years.
Ten decades equals 100 years or one century.
A decade consists of ten years, so thirty years is three decades.
There is ten years in one decade, so there are 60 years in 6 decades.
260 years equal two centuries and six decades.
It is called : Decades.