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Cross-Multiplication Method of Finding Solution of a Pair of Linear Equations

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Question

A train covers a distance of $300 k m$ at a uniform speed. If the speed of the train is increased by $5 k m / h$ , it takes $2$ hours less in the journey. Find the original speed of the train.

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Solution

Hence, the speed of the train is $25 k m / h r$

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Cross-Multiplication Method of Finding Solution of a Pair of Linear Equations

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