Question

Jill can paint a room in 1 ½ hours. At that rate, how long will it take her to paint 6 rooms of the same size?

A.4 1/2 hours
B.7 1/2 hours
C.9 hours
D.12 hours

Answer 1

`6\cdot1(1)/(2)=6\cdot1.5=9 \Rightarrow \text{C}`