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Question

A man runs round a circular field of radius 50m at the speed of 12km/hr. What is the time taken by the man to take twenty rounds of the field?
  1. 30min.
  2. 32min.
  3. 34min.
  4. None of these

A
30min.
B
None of these
C
34min.
D
32min.
Solution
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