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Question

Two persons start moving from two point $A$ and $B$ in opposite directions towards each other. One person start moving from $A$ at the speed of $4$ km/h and meets the other person coming from $B$ after $6$ hours. If the distance between $A$ and $B$ is $42$ km, find the speed of the other person.

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Solution

$\begin{matrix} 6 = \frac{42}{4 + x} ∴ x = 3 k m / h \end{matrix}$

Hence, this is the answer.

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