Find the compounded ratio of $l : m, m : n$ and $n : o$

l : n

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n : m

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l : o

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l : m

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Solution

The correct option is C $l : o$
By the defination of compound ratio $l : m, m : n$ and $n : o$ can be expressed as
$\frac{l}{m} \times \frac{m}{n} \times \frac{n}{o} = \frac{l}{o}$
Hence $l : o$

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