Question

what is the ratio of 20 metres to 100 km​

Answer 1

Answer:

1:5is the ratio

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Answer 2

Answer:

∴ The ratio of $20$ metres to $100$ km is $1:5000$.

Step-by-step explanation:

• In context with question asked,
• We have to find the ratio of $20$ metres to $100$ km​.
• To find the ratio of any two quantities, that quantities must be in same units.
• Here, we have to convert $100$ km into meters.
• We know that, $1$ km = $1000$ m
• Now, $100$ km = $100\times 1000=100000$ m
• So, the ratio becomes,

        $20$ metres to $100$ km = $\frac{20}{100000}$

                                     = $\frac{1}{5000}$

                                     = $1:5000$

• ∴ The ratio of $20$ metres to $100$ km is $1:5000$.