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TIMO - 2021 - Grade 9 - Preliminary Round - Paper 1 Question 9

TIMO · TIMO - 2021 - Grade 9 - Preliminary Round - Paper 1

Question 9

Given $\frac13+\frac1{15}+\frac1{35}+\cdots+\frac1{(2n+1)(2n+3)}=\frac{1010}{2021}$, find the natural number $n$.
  1. 1009
  2. 673
  3. 1010
  4. 1021