a decade is ten years so 3 of them would be thirty(30) years. thirty
There are 20 years in two decades.
260 years equal two centuries and six decades.
two
There are 200 decades in two millennium which is 2,000 years
well a decade is 10 year so 2 decades will be 20 years
Twenty years is two decades.
There are 3.5 decades in 35 years
There are 5 decades in 50 years.
230 years = 23 decades
16 decades and 4 years.
96 decades and 9 years.
There are 19 decades in 190 years.