If you mean decades then there are 10 decades in 100 years
20 decades = 2 centuries or 20*10 = 200 years
1 decade has 10 years and 1 score has 20 years, therefor there are 2 decades in a score.
2 centuries
If you mean 3/10 of a century then there are 3 decades A decade is 10 years and a century is 100 years
While no year has 2 decades between years, perhaps you mean what years signal a decade has passed. Years ending by counts of 10, so...190019101920193019401950196019701980199020002010So if you wanted to show 2 decades with the above decades, it would be written as:1900 - 19201920 - 19401940 - 19601960 - 19801980 - 2000
1 decade equals 10 years. So 2 decades is equal to 20 years.
If you mean decades then there are 10 decades in 100 years
20 decades are in 2 centurarys
20 decades = 2 centuries or 20*10 = 200 years
A decade is 10 years therefore 8 decades is 80 years.
1 decade has 10 years and 1 score has 20 years, therefor there are 2 decades in a score.
2 decades after 1620 is 1600 because 1 decade is 10 years so 2 decades must be 20 so 1620 + 20= 1640
1/10
20 years.
2
10 years = 1 decade 20 years = 2 decades 30 years = 3 decades . . etc.