[Daily Brain Teaser] Labor Day Maths Puzzle - 9 January

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Birender Rawat

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Jan 9, 2013, 2:41:14 AM1/9/13
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Labor Day Maths Puzzle  - 9 January


Manish drive to his office at 20km/hr. After reaching office, he realize that today is a holiday of 'Labor Day'.He went back at average speed of 30km/hr. Discounting the time spent in the stoppage what was his average speed of his journey ?


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