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A man travels from A to B at a speed of x kmph. He then rests at B for x hours. He then travels from B to C at a speed of 2x kmph and rests at C for 2x hours. He moves...

Solution

The speed with which he travelled from C to D is = 2(2x) = 4xGiven, distances A-B = B-C = C-D = 12km12×2 −...

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