The 11th century was from 1st January 1001 to 31st December 1100 (inclusive).
The sum of the positive integers from 1,000 to 1,100 inclusive is: 106,050
28 3s
How many 3s are in 15
9
4
16
37.6666667
1100 grams = 2.425 pounds
About 27.8 acres.
1100 grams = 1.1 kilograms.
1100 mm = 110 centimeters