No way of telling. Depends on what else you're doing and what your eating habits are.
Take 200 divide by 20!
not sure what MPR is but if it's 200 MPH it'd take you 15 minutes
18 seconds to travel a mile at 200 mph.
http://www.wolframalpha.com/input/?i=200+miles+at+70mph
200 / 25 = 8 hours
squats pushups an lifting 200 pound wiehts
200
200 yrs
200 years
200 years
page a day = 200 days! This question can be rephrased - how long is a piece of string?
200 to 500 years
about 200 years
200 years
200 hours
200 years
200 days