A wheel makes $300$ revolutions per minute. How many revolutions will it make in $1$ second?

A wheel makes $300$ revolutions per minute. How many revolutions will it make in $1$ second?
  1. $3$
  2. $5$
  3. $6$
  4. $10$

Solution

$300$ rev in $60$ s, so per second $= \dfrac{300}{60} = 5$ revolutions.

Asked in: IMO

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