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A runner runs the first of his race at a speed of , then the next at a speed of and the last at a speed of . Calculate the average speed of the runner in m/s and round it to the nearest whole number.
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Note: This problem has dynamic elements. This means elements such as numbers and consequently the step-by-step solution and the final answer may change overtime. Therefore, there may be a difference between a problem that is published online and the same problem exported into a PDF document.
The average speed of the runner is .
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of his race at a speed of 
, then the next 
at a speed of 
at a speed of 
. Calculate the average speed of the runner in m/s and round it to the nearest whole number.
