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TIMO 2021 Grade 6 Preliminary Set 2 Question 9

TIMO · TIMO 2021 Grade 6 Preliminary Set 2

Question 9

What is P if P=1×2+2×3+3×4+...+29×30?

Question illustration
  1. 9990
  2. 8990
  3. 8890
  4. 8880