Question

Are the ratios 45km : 60km and 12 hours : 15 hours in a proportion

​

Answer 1

Answer:

The given ratio $45$ km : $60$ km and $12$ hours : $15$ hours is not in proportion.

Step-by-step explanation:

• In context to question asked,
• We have to find that the ratios $45$ km : $60$ km and $12$ hours : $15$ hours in a proportion or not.
• To find this, the given ratio can be rewrite as,

           $\frac{45}{60} =\frac{12}{15}$

• Now, by cross-multiplication, we get

        $45*15=60*12$

          ∴ $675=720$

     ∴ L.H.S. ≠ R.H.S.

• So, the given ratio $45$ km : $60$ km and $12$ hours : $15$ hours is not in proportion.

Answer 2

Step-by-step explanation:

45×15=675. and 60×12 720