Question

Which ratio correctly compares 15 m to 45 cm?

A.
10 : 3

B.
100 : 3

C.
1 : 3

D.
1 : 300

Answer 1

`(15 \ m)/(45 \ cm)=(1500 \ cm)/(45 \ cm)=(100 * 15)/(3 * 15)=(100)/(3)=\boxed{100:3} \Leftarrow \hbox{answer B}`