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A man jogs at 6mph over a certain journey and walks over the same route at 4mph. What is his average speed for the journey

+7 votes
asked Oct 11, 2014 in TCS by Pushpa Kumari 1 flag

1 Answer

+3 votes
Use this formula 2ab/a+b = So 2 x 4 x 6 / (4 + 6) = 4.8 mph
answered Oct 15, 2014 by Campusgate
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