um i am pretty sure the answer is 900 but i am no mathematician!
One century is equal to 100 years, therefore 100 x 9 = 900, so 900 years are in 9 centuries.
A century comprises 100 years. Thus 900 years is equal to 9 centuries.
There are 100 years in a century. Therefore, 900 years is equal to 900/100 = 9 centuries.
There are 100 years in a century
There are 100 years in a century. There are 1000 years in a millennium.
There are 100 years in a century
A century is 100 years.
A century is 100 years.
A century is one hundred years.
each century is 100 years
1 century = 100 years
A century is 100 years.
There were 100 years in the 20th century.