30 years
until you are 20
A score is 20 years, so 10 scores is 200 years.
years to decade=/10 years to century=/100 example: 20 years=____decade =( 20 / 10 )decade =2 decade Note: / means divide
There 10 years in a decade.
20 years & 10 months
A Decade is 10 years. 200 x 10 is 2000.
20 decades 2 centuries = 200 years 1 decade = 10 years 200/10 = 20
10 to 20 years
About 20.
A decade is 10 years, so 2 is 20 years. In Greek " deca" means 10.
10 years. since he was 20.
A score is 20 years. A decade is 10 years. So in 10 decades we've had 100 years. Thus there are 5 scores in 10 decades. 10 Years/1 Decade x 10 Decades ÷ 20 years/1 score = 5 scores