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Solving Simultaneous Linear Equations by Graphical Method

Find the rati...

Question

Find the ratio of the following
$30 m i n u t e s$ to $1.5 m i n u t e s$

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Solution

$30$ minutes $: 1.5$ minutes
$= 30 : 1.5$
$= 30 \times 10 : 1.5 \times 10$
$= 300 : 15$
$= 20 : 1$

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