There are 12 decades in 120 years.
1 decade = 10 years 12 x 10 decades = 120 years
1 decade = 10 years120 years = 12 decades
1 decade = 10 year ⇒ 1.1 decades = 1.2 x 10 years = 12 years
1 year = 12 months so 5 decades = 5*10 = 50 years = 50*12 = 600 months!
1 year = 12 months so 3 decades = 3*10 = 30 years = 30*12 = 360 months!
One decade is 10 years so three decades is 30 years. There are twelve months in a year, so 12 times 30 = 360.
There are 3.5 decades in 35 years
1.25 decades = 12.5 years12.5 years x 12 months per year = 150 months
1 year = 12 months so 2.5 decades = 2.5*10 = 25 years = 25*12 = 300 months!
There are 5 decades in 50 years.
230 years = 23 decades