The numbers of runners that are 50 and above are 3000.
<h3>How to find the runners that are 50 and above in the pie chart?</h3>
Using the pie chart,
If there are 1500 runners that are under 20, therefore,
1500 = 10 / 100 × x
where
x = total number of runners
10x = 150000
x = 15000
Therefore,
the number of runners that are 50 and above = 20 / 100 × 15000 = 3000
learn more on pie chart here: brainly.com/question/7197016
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