The numbers of runners that are 50 and above are 3000.
How to find the runners that are 50 and above in the pie chart?
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: https://brainly.com/question/7197016
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