Question

Which ratio correctly compares 15 m to 45 cm?








A.
10 : 3







B.
1 : 300







C.

100 : 3








D.
1 : 3

I think it is b

Answer 1

or a

Answer 2

15m×100cmm=1500cm
1500cm:45cm=1500cm15:45cm15=100:3 C.

Answer 3

ok thx

Answer 4

@tkhunny is it right?

Answer 5

Why not convert carefully and see?

\(\dfrac{15\;m}{45\;cm} = \dfrac{15\;m\cdot\dfrac{100\;cm}{1\;m}}{45\;cm} = \dfrac{1500\;cm}{45\;cm} = \dfrac{1500}{45} = \dfrac{300}{9} = \dfrac{100}{3}\)

Good work.