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Ratio and Proportion

Scientific fi...

Question

Scientific findings tell us that weights of objects on the moon are proportional to their weights on Earth. Suppose a $100 k g$ man weighs $16.5 k g$ on the moon, what will an $80 k g$ man weigh on the moon?

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Solution

$\begin{matrix} L e t x b e t h e w e i g h t o f a 80 k g m a n . G i v e n, \frac{100 k g}{16.5 k g} = \frac{80 k g}{x} ∴ x = 13.2 k g H e n c e, 80 k g m a n w i l l h a v e 13.2 k g m a s s o n t h e m o o n . \end{matrix}$

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