If three painters can complete three rooms in three hours, how many painters would it take to do 27 rooms in 9 hours? Options.
A) 10	B) 8	C) 7	D) 9	E) 11
Explanation:   Three painters can complete three rooms in three hours.So 27 rooms can be painted in 9 hrs by 9 painters   Answer: 9) 9 painters
<result>D</result>
If three painters can complete three rooms in three hours, how many painters would it take to do 27 rooms in 9 hours?