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Ratio and Proportion

Question 71ii...

Question

Question 71(ii)

It is given that l varies directly as m.
Find the constant of proportion (k), when l is 6, then m is 18.

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Solution

Since l varies directly as m.
If l =6 and m=18, then
$k = \frac{6}{18} = \frac{1}{3}$

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Ratio and Proportion

Standard IX Mathematics

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