Stacey is painting her bedroom. She is able to paint 3/4 of the bedroom in 3 hours. At this rate, how long will it take her to paint the entire room?
A. 4 hours
B. 9/4 hours
C. 6 hours
D. 12 hours
If Stacey is able to paint 3/4 of the bedroom in 3 hours, then 1/4 of the bedroom is left to paint.
To paint the remaining 1/4 of the bedroom, it would take her (1/4) * 3 = 3/4 of an hour.
Therefore, the total time it would take her to paint the entire room is 3 hours + 3/4 hour = 12/4 + 3/4 = 15/4 hours.
Since 15/4 hours is equivalent to 3 3/4 hours, the answer is B. 9/4 hours.