Instructions

Answer the question based on the following information.

Table 1 gives the men's and women's world record times for various outdoor running distances, recognized by the International Association of Athletics Federations (IAAF) as of 17 November 2017.

Question 21

The average speeds (rounded to 2 places of decimal) for the men's and women's fastest 1500 metersrace have been, respectively.

Solution

For Men's 1500 m, fastest time recorded= 206 seconds.

So, average speed = $$\frac{\ Total\ dis\tan ce}{Total\ time}=\ \frac{\ 1500}{206}=7.28\ metres\ per\ \sec.$$

For Women's 1500 m, fastest time recorded= 230.1

So, average speed= $$\frac{\ Total\ dis\tan ce}{Total\ time}=\ \frac{\ 1500}{230.1}=6.52\ metres\ per\ \sec.$$

Therefore, Option A.

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The average speeds (rounded to 2 places of decimal) for the men's and women's fastest 1500 metersrace have been, respectively.

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