hey can you help me solve these, ive got 20 problems..and i only need is this(adsbygoogle = window.adsbygoogle || []).push({});

problem so that i have an idea of answering the others

An engineer can decrease by 2 hours the time it takes to travel 200km. If he increases the speed of the freight train by 5km per hour, what is the original speed of the train?

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# Homework Help: Word Problems Involving Quadratic Equations

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