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For going to a city B from city A there ...

For going to a city B from city A there is a route via city C such that `AC botCB`, AC =2x km and CB = 2(x + 7) km. It is proposed to construct a 26 km highway which directly connects the two cities A and B. Find how much distance will be saved in reaching city B from city A after the construction of the highway.

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The correct Answer is:
8 km
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