5. Two friends are cycling at 50 km/hr and 40 km/hr from the opposite ends of a linear track such that after reaching the opposite ends they return to their starting positions. If the length of the track is 550 meter, after how much time will they meet for the second time? 1) 55 seconds 2) 60 seconds 3) 63 seconds 4) 66 seconds 5) None of these they
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(3) 63 seconds
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