The answer depends on the units used for 120.5 - which you have chosen not to specify. The number of hours in 120.5 minutes is very different from the number of hours in 120.5 years!
15 hours and 20 minutes.
The factors of 1205 are: 1, 5, 241, 1205
1205
It is: MCCV = 1205
1205*6904 = 8,319,320
1205 - 732 = 473
200.8333
1205 miles
1205 miles
There are 1205 kilograms in 1.205 tons.
Total square yards: 133.89
Exactly as in the question 1205 but if you mean in Roman numerals it is MCCV