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IMAS 2020–2021 Junior Round 2 Question 1

IMAS · IMAS 2020–2021 Junior Round 2

Question 1

If $P=\frac{2021}{2020}-\frac{2020}{2021}$ and $Q=\frac1{2020}\times\frac1{2021}$, then what is the value of $\frac PQ$?
  1. $1$
  2. $2$
  3. $2020$
  4. $2021$
  5. $4041$