Question

an athelet completed a circular track of diameter 10m in 20s .find the distance traveled by the athelet​

Answer 1

I think this will give you the required answer

$2 \times(22 \div 7) \times 5$

ans= 3.14*10

=31.4m

Answer 2

hope it helps you.
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here time is given only for confusing you.......